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How to determine time in geography. We learn to convert solar time to local time. Determining local time at a given point

local time will differ. This difference will increase with increasing distance between the meridians. So, on neighboring meridians, drawn through 15 °, the difference in local time is 1 hour, Drawn through 1 - 4 min, Drawn through 1 ' (one minute, one degree is divided by 60 minutes) - 4 s (it is at such angular distances that the points rotate one meridian for specified periods of time). In this case, the local time on the meridian located east of which point is ahead of the time in it, and on the more western meridian is behind. For example, if local time is Kyiv afternoon tea (12 noon), then at Donetsk It’s already 12:29 pm, And at Lvov at this moment - only 11 hours 33 minutes 56 seconds. Therefore, to set exact time

at different points, knowing it at one of them, you need to carry out such calculations.

a) Kyiv - 30 ° 34 ‘E. d.;

b) Donetsk - 37 ° 49 ‘E. d.;

c) Lviv - 24 ° 03 ‘E. d.

2. Set the difference in longitude between points (in degrees and minutes):

a) between Donetsk and Kiev - 37 ° 49 ‘- 30 ° 34’ = 7 ° 15 ‘E. d.;

b) between Kiev and Lvov - 30 ° 34 ‘- 24 ° 03’ = 6 ° 31 ‘east. d.

3. Convert the difference in longitude (from degrees and minutes) to the difference in time (in hours, minutes and seconds):

a) 7°15′ = 7 x 4 xv15 x 4 s = 29 xv;

b) 6 ° 31 ‘= 6 x 4 x b 31 x 4 s = 26 x b 4 s.

the found values show the difference in local time on the meridians drawn through Kyiv, Lvov and Donetsk.

4. Before the known time in Kyiv (12 hours), add (in the case of Donetsk, which lies east of Kyiv) or subtract from it (in the case of Lvov, which is located west of Kyiv) the resulting value:

a) if it is 12 o’clock in Kyiv, then the local time in Donetsk will be

12 h + 29 hv = 12 h 29 hv;

b) if it is 12 o’clock in Kyiv, then the local time in Lviv will be

12 h – 26 x 4 s = 11 h 33 x 56 s. Use local time, which is different at each point, in Everyday life almost impossible. For convenience, they are used all over the world standard time . For this, as you know, the globe was conventionally divided by meridians into 24 stripes (according to the number of hours in a day) - into Time Zones(15° longitude each). In all points of one belt, they agreed to consider the time the same. Standard time takes the local time of the meridian passing through the middle of this zone (middle meridian).

Time zones are numbered from 0 to 23 in an easterly direction: the middle meridian of the 0th zone is Greenwich (Prime) Meridian, 1st zone - meridian 15 ° east. d., 12th zone - 180th meridian, 23rd zone - meridian 15 ° W. d.

The time of the 0th zone is called Western European , 1st - Central European , another - Eastern European . The zone number indicates the standard time at the moment when the Greenwich meridian is north. The time difference between two neighboring zones is 1 hour. Moving around globe from west to east, we must move the clock forward one hour when crossing the borders of each subsequent zone, and moving westward - one hour back.

The location of Ukraine relative to time zones is convenient: 95% of its territory lies in the second zone, only Lugansk and parts Donetsk And Kharkov regions- In the 3rd zone, and a small part Transcarpathian region- in the first belt. However, in practice, for convenience, the boundaries of time zones on land are drawn not strictly along the meridians, but taking into account state borders. Therefore, the entire territory of Ukraine is assigned to the second time zone. Standard time in our country is the average time for the second zone meridian (30, which passes almost through Kyiv. Therefore, in Ukraine the belt is also called Kyiv .

Amazing Ukraine

According to the time zone of the second zone, in addition to Ukraine, Belarus, Latvia, Lithuania, Estonia, Finland, Moldova, Romania, and Turkey also live in Europe. All Western neighbors of Ukraine, Central countries and most countries Western Europe use Central European Time, while the UK, Ireland, Iceland and Portugal use Western European Time. On the borders of Ukraine Russian territories the so-called Moscow time is in effect, which is 1 hour ahead of Moscow

Ric. Time zones of the world

Summer time. Every year in Ukraine it is introduced summer time : On the night of the last Sunday in March, the clock hand is moved forward one hour. This makes it possible to use the light part of the day more fully and save energy. On the night of the last Sunday in October, the clock hand is turned back an hour, restoring standard time.

The introduction and abolition of summer time is carried out synchronously by most European countries.

Lesson 3. Time Zones

Local (solar) time – time determined for a given place on Earth; depends on geographic longitude terrain.

Local time is the same for all points located on this meridian. The difference in the local time of two places is equal to the difference in the longitudes of these places.

Standard Time – this is the time within a time zone; local time of the central meridian of the belt.

The Earth's surface is divided into 24 time zones (numbered 0 to 23) each 15º (1 hour) long.

Summer time. It was introduced to make better use of sunlight and save energy. When switching to daylight saving time on the last Sunday in March, the clocks are moved forward 1 hour. Daylight Saving Time keeps us 1 hour ahead of standard time until the clocks turn back on the last Sunday in October. Currently, the question is being raised about canceling the change of clocks to daylight saving time and back.

How to determine local time

As you already know from the 7th grade geography course, at the same moment in different points of the planet, lying on different meridians, there will be different local (i.e.

solar) time. You know that this is due to the rotation of the Earth around its axis. The time will be the same only at all points lying on the same meridian. So, on the western and eastern outskirts of even one settlement, local time will be different.
This difference will increase with increasing distance between the meridians.

So, on neighboring meridians, drawn through 15°, the difference in local time will be 1 hour, drawn through 1º - 4 minutes, drawn through 1′ (one minute, one degree is divided by 60 minutes) - 4 seconds (these are the angular distances they rotate points of one meridian for specified periods of time).

In this case, the local time on the meridian located to the east of any point will be ahead of the time in it, and on the more western meridian it will be behind. For example, if local time in Kyiv is noon (12 o’clock), then in Donetsk it is already 12 hours 29 minutes, and in Lviv at this moment it is only 11 hours 33 minutes 56 seconds.
Consequently, in order to establish the exact time at different points, knowing it at one of them, it is necessary to carry out such calculations.

Determine the geographic longitude of settlements:
a) Kyiv - 30° 34’E. d.;
b) Donetsk - 37° 49’E. d.;
c) Lviv - 24° 03’E. d.

Set the difference in longitude between points (in degrees and minutes):
a) between Donetsk and Kiev - 37° 49′ - 30° 34′ = 7° 15’E.

d.;
b) between Kiev and Lvov - 30° 34′ - 24° 03′ = 6° 31’E. d.

Convert the difference in longitude (from degrees and minutes) to the difference in time (in hours, minutes and seconds):
a) 7°15′ = 7 ∙ 4 min + 15 ∙ 4 s = 29 min;
b) 6° 31’= 6 ∙ 4 min + 31 ∙ 4 s = 26 min 4 s.

The found values show the difference in local time on the meridians drawn through Kyiv, Lviv and Donetsk.

To the time we know in Kyiv (12 hours) add (in the case of Donetsk, which lies to the east of Kyiv) or subtract from it (in the case of Lvov, which is located to the west of Kyiv) the resulting value:
a) if it is 12 o’clock in Kyiv, then the local time in Donetsk will be 12 hours + 29 minutes = 12 hours 29 minutes;
b) if it is 12 o’clock in Kyiv, then the local time in Lviv will be 12 o’clock – 26 min 4 s = 11 h 33 min 56 sec.

Time zones and standard time

It is almost impossible to use local time, which is different in each location, in everyday life. For convenience, they are used all over the world standard time.

To do this, as you know, the globe was conditionally divided by meridians into 24 stripes (according to the number of hours in a day) - into time zones (15 ° longitude each).

In all points of one belt, they agreed to consider the time the same. Standard time is taken to be the local time of the meridian passing through the middle of this zone (middle meridian).

Time zones are numbered from 0 to 23 in an easterly direction: the middle meridian of the 0th zone is the Greenwich (primary) meridian, the 1st zone is the 15° east meridian. d., 12th zone - 180th meridian, 23rd zone - meridian 15°W. The time of the 0th zone is called Western European, 1st - Central European, 2nd - Eastern European.

The zone number indicates the zone time at the moment when it is midnight on the Greenwich meridian.

The time difference between two neighboring zones is 1 hour. Moving around the globe from west to east, we must move the clock hand one hour forward when crossing the borders of each subsequent zone, and moving westward - one hour back.

The location of Ukraine relative to time zones is convenient: 95% of its territory lies in the second zone, only Lugansk and parts of the Donetsk and Kharkov regions are in the 3rd zone, and a small part of the Transcarpathian region is in the first zone.

However, in practice, for convenience, the boundaries of time zones on land are drawn not strictly along the meridians, but taking into account state borders.

Therefore, the entire territory of Ukraine is assigned to the second time zone. Standard time in our country corresponds to the average time for the second zone of the meridian 30º, which passes almost through Kyiv.

Therefore, in Ukraine, standard time is also called Kyiv time.

According to the time zone of the second zone, in addition to Ukraine, Belarus, Latvia, Lithuania, Estonia, Finland, Moldova, Romania, and Turkey also live in Europe.

All of Ukraine's western neighbors, the countries of Central and most countries of Western Europe use Central European Time, while Great Britain, Ireland, Iceland and Portugal use Western European Time.

In the Russian territories adjacent to the borders of Ukraine, the so-called Moscow time is in effect, which is 1 hour ahead of Kiev.

Practical work No. 1 (continued)

Goal of the work: Learn to determine the position of a country in time zones.

Exercise:

Determine the standard time in Lisbon, Madrid, New York, Beijing, if it is 6 pm in Kyiv.

Determine what time it is in cities located 10º, 25º, 40º east and west of Kharkov, if it is 9 o’clock in Kharkov?

Determine the difference in local time between the extreme western and extreme eastern points of Ukraine if one degree is equal to four minutes (1º = 4 minutes).

Mark on contour map meridians are the boundaries of the II time zone and label the areas where:

Local time = standard time + minutes;

Local time = standard time - minutes

Local time = standard time.

Additionally: write down definitions of concepts and find interesting information about universal time, maternity time, date line.

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But to meet New Year in Russia it is possible 10 times, since the 11th and 12th time zones are combined into one zone for the convenience of calculating time on the Chukotka Peninsula. But another 33 regions of our country have changed their time in order to live “in step” with the capital. You need to know that:

- local time - time on one meridian in this moment;

— zone time – time within one time zone;

- maternity time - standard time plus one hour;

- date line - a line drawn along the 180th meridian, bypassing the land.

The date line indicates the transition from the Eastern Hemisphere to the Western Hemisphere, and vice versa, and it is from here that the new day begins.

When we cross this line, we go from one day to another. If we cross the international date line, moving along with the rotating earth from west to east, then we must count the same day twice.

If you cross the line of change from east to west, then you need to skip one day.

Summer time. The length of the day increases in summer. Throughout the country, on the last Sunday in March, clock hands are moved one hour ahead compared to standard time and maternity leave. And on the last Sunday in October, the clock hands return, that is, they are moved back an hour.

We found out that there are two ways to solve problems on determining standard time:

1) using a time zone map.

Determine in which time zones the objects are located. If the second object is east of the first, then the time needs to be added. If to the west, then subtract.

Example. Determine the standard time of Omsk if it is 15:00 in Smolensk.

Solution: Smolensk is located in 2 time zones, and Omsk is in 5. The difference between the zones is 3 hours. Omsk is located east of Smolensk, which means you need to add 3 to 15 o’clock. Therefore, it is already 18 o’clock in Omsk.

2) using geographic coordinates.

Each time zone contains 15°. Knowing the longitudes of objects, they calculate the difference between them and determine standard time.

Example. City N is located on the meridian 145°E. and it's midnight there. Determine time in Moscow.

Solution. Moscow is located on the meridian 37° east. 145 – 37=98° 98:15=6, i.e. the difference is 6 hours.

24-6=18 hours. Subtracted because Moscow is located west of the city N.

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1. What is the date when a resident of Chukotka flies to Alaska, arriving on October 10 at 9 a.m. (travel time is 1 hour)?

2. The ship left the port of Petropavlovsk-Kamchatsky on September 12 at 8.00 local time and arrived in Los Angeles on September 24 at 12.00 local time.

How many days was he on the way?

3. Your ship leaves San Francisco on Sunday, October 11 at 8 pm and arrives in Vladivostok exactly 14 days later. Write a telegram text to your parents when and if they recognize you.

4. What do you think? maximum amount weeks in February - the shortest month of the year?

5. In which famous fairy tales by French and Russian writers was the idea of what is now called summer time proposed?

6. From Vladivostok at 13.00 local time, the telegram was sent to Moscow and delivered to the addressee at 9.15 Moscow time.

How long did the telegram last?

2. If he is in Los Angeles on September 24, then in Petropavlovsk-Kamchatsky on September 25, 7.00. The ship was on the road for 13 days (25 - 12 = 13).

3. According to the mobile time zone table, we determine: after the Vladivostok calendar, the ship left San Francisco on Monday, October 12, at 2 o'clock in the afternoon. In 14 days, Vladivostok will host Monday, October 26th.

4. If the question of who permanently lives in one place is raised, he will justify it in this way. Use the maximum number of days in February that occurs in leap years, — 29.

Algorithm for solving problems of determining band and local time. Geography class 8

If the first episode of this February falls on a Sunday, February 8, 15, 22 and 29 will also be on a Sunday. Therefore one answer; Most weeks in February are five.

If the answer is that the captain of a ship who regularly sails the Bering Strait from Chukotka to Alaska every week, he can say the following. Every Sunday the ship departs for Chukotka.

On the same day the ship crosses the change date line. When it moves from west to east, the next day will be Sunday again. And so on every week. Therefore, the maximum number of weeks in February could be twice as long for the crew as for all other inhabitants from the ground, up to ten.

In Charles Perrault's story, "Cinderella", there are the lines: "During the ball in the palace, the king ordered an extension of leave, which would be handed over every hour until the hour." So Perrault in the 18th century. For centuries I have been anticipating the idea of introducing artificial repairs into clock readings for practical purposes.

Let's remember some details about the history of Sergei Timofeevich Aksak (1791-1859) " purple flower", At the time when the merchant's daughter had to return to the beautiful forest, the miracle of the sea, "the nurses developed a complex business, cunning and unwise: they took it and an hour ago all the clocks in the house",

Thus, Aksakov presented the idea of introducing artificial repairs in an hour.

At present, more than 70 countries except Japan, China and some other countries (about 120 countries) (0°40°) from the equator, each spring sets the clock to 1 hour to achieve more rational use daylight for the next seven months, in the evening, for a long time the light remains, and the lighting in houses can be connected a little later.

Change to daylight saving time southern hemisphere, this happens in September - the first spring month of this hemisphere.

6. If Vladivostok is 13 hours 20 minutes and the time difference with Moscow is 7 hours, and Moscow is 6 hours 20 minutes.

Since the telegram was delivered at 9:15, it took 2 hours 55 minutes to travel (9 hours 15 - 6 hours 20 = 8 hours 75 - 6 hours 20 = 2 hours 55).

home How to determine local time. As you already know from the 7th grade geography course, at the same moment in different points of the planet, lying on different meridians, there will be different (Those. (Those. )time . You know that this is due to the rotation of the Earth around its axis. The time will be the same only at all points lying on the same meridian. So, on the western and eastern outskirts of even one settlement, local time will be different. This difference will increase with increasing distance between the meridians. So, on neighboring meridians, drawn through 15 °, the difference in local time is 1 hour, Drawn through 1 - 4 minutes, Drawed through 1 "(one minute, one degree is divided by 60 minutes) - 4 s (it is at such angular distances that the points rotate one meridian for specified periods of time).

local time will differ. This difference will increase with increasing distance between the meridians. So, on neighboring meridians, drawn through 15 °, the difference in local time is 1 hour, Drawn through 1 - 4 min, Drawn through 1 ' (one minute, one degree is divided by 60 minutes) - 4 s (it is at such angular distances that the points rotate one meridian for specified periods of time). In this case, the local time on the meridian located east of which point is ahead of the time in it, and on the more western meridian is behind. For example, if local time is Kyiv afternoon tea (12 noon), then at Donetsk It’s already 12:29 pm, And at at this moment - only 11 hours 33 minutes 56 seconds. Consequently, in order to establish the exact time at different points, knowing it at one of them, it is necessary to carry out such calculations.

a) Kyiv - 30 ° 34 "E;

b) Donetsk - 37 ° 49 "E;

c) Lviv - 24 ° 03 "E.

c) Lviv - 24 ° 03 ‘E. d.

a) between Donetsk and Kiev - 37 ° 49 "- 30 ° 34" = 7 ° 15 "E;

b) between Kiev and Lvov - 30 ° 34 "- 24 ° 03" = 6 ° 31 "E.

b) between Kiev and Lvov - 30 ° 34 ‘- 24 ° 03’ = 6 ° 31 ‘east. d.

a) 7°15" = 7 x 4 xv15 x 4 s = 29 xv;

b) 6 ° 31 "= 6 x 4 x 31 x 4 s = 26 x 4 s.

b) 6 ° 31 ‘= 6 x 4 x b 31 x 4 s = 26 x b 4 s.

the found values show the difference in local time on the meridians drawn through Kyiv, Lvov and Donetsk.

4. Before the known time in Kyiv (12 hours), add (in the case of Donetsk, which lies east of Kyiv) or subtract from it (in the case of Lvov, which is located west of Kyiv) the resulting value:

a) if it is 12 o’clock in Kyiv, then the local time in Donetsk will be

12 h + 29 hv = 12 h 29 hv;

12 hours - 26 times 4 s = 11 hours 33 times 56 seconds.

12 h – 26 x 4 s = 11 h 33 x 56 s. It is almost impossible to use local time, which is different at each point, in everyday life. For convenience, they are used all over the world standard time . For this, as you know, the globe was conventionally divided by meridians into 24 stripes (according to the number of hours in a day) - into Time Zones(15° longitude each). In all points of one belt, they agreed to consider the time the same. Standard time takes the local time of the meridian passing through the middle of this zone (middle meridian).

Time zones are numbered from 0 to 23 in an easterly direction: the middle meridian of the 0th zone is Greenwich(Prime) meridian, 1st zone - meridian 15 ° east. d., 12th zone - 180th meridian, 23rd zone - meridian 15 ° W. d.

The time of the 0th zone is called Western European , 1st - Central European , another - Eastern European . The zone number indicates the standard time at the moment when the Greenwich meridian is north. The time difference between two neighboring zones is 1 hour. Moving around the globe from west to east, we must move the clock hand one hour forward when crossing the boundaries of each subsequent zone, and moving westward - one hour back.

Amazing Ukraine

According to the time zone of the second zone, in addition to Ukraine, Belarus, Latvia, Lithuania, Estonia, Finland, Moldova, Romania, and Turkey also live in Europe. All of Ukraine's western neighbors, the countries of Central and most countries of Western Europe use Central European Time, while Great Britain, Ireland, Iceland and Portugal use Western European Time. In the Russian territories adjacent to the borders of Ukraine, the so-called Moscow time is in effect, which is 1 hour ahead of Moscow

Ri c . Time zones of the world

The introduction and abolition of summer time is carried out synchronously by most European countries.

When traveling around Russia and the World, you must remember that time may change depending on where you are. Since local time is generally used everywhere, it is necessary to be able to determine it anywhere in the world. The basis modern system Time zones are based on Coordinated Universal Time (UTC), which determines the time of all time zones. The UTC scale was introduced in 1964 and is established by atomic clocks. Coordinated Universal Time (UTC) always remains an independent reference for the whole world and from which, knowing the difference between your standard time, you can always calculate your local time.

The standard time system makes it easy to determine the standard time at any location. There is a certain relationship between standard time and time zones. The difference between the time zones of two points is equal to the difference in the time zone numbers. This relationship allows you to determine the time at a given point by the known standard time of another time point.

The time at a given point will be equal to the time of the point where it is known, plus or minus the difference in time zone numbers. The specified difference is added to the known standard time if the point whose time is determined is located east of the point whose time is known, and if it is to the west, it is subtracted.

In Russia:

According to the federal law “On Amendments to the federal law“On the Calculation of Time”, adopted on July 1, 2014, from October 26, 2014, Moscow time corresponds to the third time zone in the national time scale Russian Federation UTC+3. There are 11 time zones, corresponding in international numbering to time zones from 2 to 12 inclusive.

1st time zone (MSK-1, Moscow time minus 1 hour, UTC+2): Kaliningrad region;

2nd time zone (MSK, Moscow time, UTC+3): Republic of Adygea (Adygea), Republic of Dagestan, Republic of Ingushetia, Kabardino-Balkarian Republic, Republic of Kalmykia, Karachay-Cherkess Republic, Republic of Karelia, Komi Republic, Republic of Crimea, Republic of Mari El, Republic of Mordovia, Republic North Ossetia- Alania, Republic of Tatarstan, Chechen Republic, Chuvash Republic- Chuvashia, Krasnodar region, Stavropol region, Arkhangelsk region, Astrakhan region, Belgorod region, Bryansk region, Vladimir region, Volgograd region, Vologda region, Voronezh region, Ivanovo region, Kaluga region, Kirov and Kostroma regions, Kursk region, Leningrad region, Lipetsk region, Moscow region, Murmansk region, Nizhny Novgorod region, Novgorod region, Oryol Region, Penza region, Pskov region, Rostov region, Ryazan Oblast, Saratov region, Smolensk region, Tambov region, Tver region, Tula region, Ulyanovsk region, Yaroslavl region, Nenets Autonomous Okrug; cities federal significance- Moscow, St. Petersburg, Sevastopol;

3rd time zone (MSK+1, UTC+4): Udmurt republic, Samara Region;

4th time zone (MSK+2, UTC+5): Republic of Bashkortostan, Perm region, Kurgan region, Orenburg region, Sverdlovsk region., Tyumen region, Chelyabinsk region, Khanty-Mansi and Yamalo-Nenets autonomous districts;

5th time zone (MSK+3, UTC+6): Altai Republic, Altai region, Novosibirsk, Omsk and Tomsk regions;

6th time zone (MSK+4, UTC+7): Republic of Tyva, Rep. Khakassia, Krasnoyarsk region and Kemerovo region;

7th time zone (MSK+5, UTC+8): Republic of Buryatia, Transbaikal region, Irkutsk region;

8th time zone (MSK+6, UTC+9): Republic of Sakha (Yakutia) (Aldansky, Amginsky, Anabarsky, Bulunsky, Verkhnevilyuysky, Vilyuisky, Gorny, Zhigansky national Evenki, Kobyaisky, Lensky, Megino-Kangalassky, Mirny, Namsky , Neryungrinsky, Nyurbinsky, Olekminsky, Oleneksky Evenki national, Suntarsky, Tattinsky, Tomponsky, Ust-Aldansky, Ust-Maysky, Khangalassky, Churapchinsky and Eveno-Bytantaysky districts), the city of Yakutsk, Amur region;

9th time zone (MSK+7, UTC+10): Republic of Sakha (Yakutia) (Verkhoyansky, Oymyakonsky and Ust-Yansky districts), Primorsky and Khabarovsk region, Magadan region, Sakhalin region(Aleksandrovsk-Sakhalinsky, Anivsky, Dolinsky, Korsakovsky, Kurilsky, Makarovsky, Nevelsky, Nogliki, Okha, Poronaysky, Smirnykhovsky, Tomarinsky, Tymovsky, Uglegorsky, Kholmsky, Yuzhno-Kurilsky districts), Jewish Autonomous region, city of Yuzhno-Sakhalinsk;

10th time zone (MSK+8, UTC+11): Republic of Sakha (Yakutia) (Abyisky, Allaikhovsky, Verkhnekolymsky, Momsky, Nizhnekolymsky and Srednekolymsky districts), Sakhalin region (North Kuril region);

11th time zone (MSK+9, UTC+12): Kamchatka Krai, Chukotka Autonomous Okrug.

Precise time signals are transmitted via radio, television and the Internet in the UTC system.

Why do you need to translate? solar time to the local? Because to select dates and times we work with the Chinese calendar of cosmic energies. It does not depend on government decrees, but on real solar time - when planet Earth is at a certain angle to the Sun. But how to take this into account?

Our Earth is divided into 24 meridians of 15 degrees, each meridian is a time zone, and the time there is average.

But if you live on the western border of the meridian, then the sun will set later for you than for those who live in the east. To find out the real solar time in your locality, we will take the following steps.

An example of converting solar time to local time

First, find the geographic longitude of your locality. This can be done using the Internet. For example, using the geonames.org service
Let's say you live in Moscow, where the geographic longitude is 37 degrees.
In Moscow the current time zone is GMT+3 (after October 26, 2014). Multiply 15 degrees by 3 and get 45 degrees. This is the base meridian.
Moscow is located at the eastern longitude of 37 degrees, 36". For ease of calculation, in the example we will “round” the longitude to 37 degrees. The difference between the base meridian and the longitude of Moscow is approximately 45 - 37 = 8 degrees. But if your area is at western longitude, then the value your geographic longitude should be added to the base meridian.
As you know, the Earth rotates every 24 hours, or 1440 minutes. One degree of rotation is 1440 minutes/360 (full rotation) = 4 minutes/degree.
We take the value of 8 degrees and multiply by 4. It turns out 32 minutes. This will be the approximate difference between Moscow time and real solar time.

How can I use this to select dates?

It's done this way. Let's say you need the hour of the Goat, which lasts from 13 to 15 hours. If you live in Moscow, then for you it will not come at this time, but 32 minutes later, that is, at 13:32. And will end at 15:32. And for another city it will already come and end at a different time - sooner or later. This will depend on its geographical longitude.

In our example, solar time and local time differ by half an hour.

Considering the time correction for choosing dates is very important. When choosing a day, you also need to choose the right hour. A good hour helps to soften an unfavorable day, but a negative hour, on the contrary, destroys even the most wonderful day. And it makes an unfavorable day even worse.

In addition, sometimes it is necessary to choose a time at the border of the day. If you incorrectly determine the hour, you can make a mistake and choose the wrong day, which has a completely different energy. If time is considered close to the border of the month or year, then you can make a mistake with the month and year.

Mistakes are unacceptable here. Therefore, when choosing a time, do not forget to adjust solar time to local time and choose the hour correctly!

A time calculator is needed to find out what time it will be in the place you need.

For example, you want to call your beloved grandfather in Vladivostok to congratulate him on his birthday. Do you know what the festive table the guests will sit down at half past seven in the evening, and you want to congratulate him at that very moment.

But by coincidence, you yourself are in the city of Darwin, Australia, and you need to find out what time, Australian time, the birthday celebration will begin.

This is where our calculator comes in handy. To find out the time, you just need to indicate half past six and the date of your birthday in the left column, select Vladivostok there and click on the "=" button between the columns

How to use the time calculator?

On the calculator panel you can see two columns - source And result

Source- this is the date, time and place known to you. Result- the required date and time.

You can set the time and date in the source by simply clicking on the corresponding field.

After setting the date and time, you need to specify the location for which you have set the time. In the birthday example, this would be the city of Vladivostok.

Below the fields for setting the date and time there is an item time is set to- this is a switch. With it, you can indicate whether you specified the time for a specific city or for a time zone. To find out the time of Vladivostok from our example, you can select both the city itself and the time zone of Vladivostok - VLAT.

To switch from indicating a city to indicating a time zone, simply left-click on the switch.

Name is the name of the object for which the time was set. Based on the value of the switch, this could be the name of the city or the name of the time zone.

After setting the date, time and source location, you need to specify which location you are looking for the time for. In our happy birthday example, it's Darwin, Australia. Using a similar switch, you can also specify both the city itself and its time zone - ACST

Once you have set all the values, just click on the " = " between fields, and find out the time you are looking for!

All the buttons of our calculator are labeled, and if you have forgotten the meaning of a particular button, hover your mouse over it. After a second, a hint will appear with its meaning.

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