How To Determine Time Zones

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How To Determine Time Zones
How To Determine Time Zones

Video: How To Determine Time Zones

Video: How To Determine Time Zones
Video: How To Calculate Duration Across Time Zones 2024, April
Anonim

Due to the fact that the dimensions of our planet are enormous, in the same period of time, in different points of the Earth - its local solar time. And to avoid confusion in clarifying the question: "So what time is it?", The standard time system was adopted. And the Earth was conditionally divided into 24 time zones. The starting point was taken the prime meridian, from which time zones +1, +2, +3, etc. go to the east, and to the west: -1, -2, -3, etc. So, thanks to the time zone system, it is now quite easy to determine the one you are looking for.

How to determine time zones
How to determine time zones

It is necessary

  • - a computer
  • - time zone map
  • - world map showing degrees of longitude

Instructions

Step 1

Turn on your computer and click on the clock indicator in the lower right corner of the screen. Now, in the window that opens, click on the "Change date and time settings" function. And, already in a new window, select the "Change time zone" function. You will be presented with a long list of time zones with a list of cities that belong to them. Of course, only the capitals of states are indicated here and there are no small towns. So, if you want to find out the time zone of a small city, just find the capital of its country in this list, because, usually, one time zone operates within one country.

Step 2

Use an ordinary world map, which details the average meridians: 0 °, 15 °, 30 °, 45 °, 60 °, etc. The fact is that one time zone occupies approximately 15 °, but not clearly from 0 ° to 15 °, from 15 ° to 30 °, from 30 ° to 45 °, etc., but with an offset equal to - 7 ° 30. So, in order to determine the boundaries, for example, of the UTC + 1 time zone, it is necessary to draw lines to the right and left of the mean meridian of 15 ° east longitude at a distance of 7 ° 30 '. In order to determine the time zone of a place that is located, for example, in the region of 60 ° West longitude, it is necessary to calculate its position in relation to the prime meridian: 15 ° - one, 30 ° - two, 45 ° - three, 60 ° - four. So 60 ° West longitude is UTC-1 time zone.

Step 3

Use a detailed map of time zones. Such a map is the easiest and most reliable way to determine the time zone of a particular point on the globe. Since here, not only the boundaries of each of the 24 time zones are indicated, but there is also a mark - whether the country is switching to daylight saving time. For example, it looks like this: +1 (+2), and means that the country belongs to the UTC + 1 time zone, but in summer time, it belongs to the UTC + 2 time zone. Of course, do not forget to take into account that in different hemispheres, summer and winter are at different times. Another big plus of such a map is the ability to determine whether different time zones operate on its territory, as in Russia, or, despite the large territory, only one zone is accepted, as in China.

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