Time zone - 时区

World time zone, click to enlarge.

Here is in accordance withTime zoneThe divided countries, regions and regions.

introduction

Have you read "Around the Earth in Eighty Days" by French writer Jules Verne? If so, you will definitely remember the ending: the protagonist and his servant have gone through all kinds of dangers and finally successfully traveled around the world back to London, but found that they were five minutes late; and the next day they discovered that it was actually a day earlier In the end, they rushed to the agreed place in time to get the bet. What is going on here?
Although people in different time zones call time zones differently, these time zones are all the same asUTC(Coordinated Universal Time) There is a certain connection. Since the Royal Observatory is located in LondonGreenichDistrict, UTC used to be calledGMT(Greenwich Mean Time, Greenwich Mean Time).

UTC is sometimes called ZorZulutime. The time can be written like 21:45Z and Z to represent UTC. "Z" means "zero", and "Zulu" is a two-way radio pronunciation of "Z". For example, if the plane takes off at 18:00 Hong Kong time (UTC 8), it will be written as 1000z, or read as "1000Zulu".

The time zone east of the 0 degree longitude line and the west of the date line is usually expressed in UTC time difference (for example, the east eight district is recorded as UTC + 8); the time zone east of the date line and west of the 0 degree longitude line is usually expressed in UTC-time difference (for example, the west six area is recorded as UTC+8). UTC-6). When you cross the date line from east to west, in order to keep the time consistent with the local time, you need to set the clock back one day, and vice versa. The previous "Around the Earth in Eighty Days" is an example of the protagonist forgetting to turn the clock down.Notice:The date line is not drawn strictly according to the 180-degree longitude line, but a broken line, which can guaranteeThe Pacific OceanThe islands of the same country on the same country can basically maintain the same time.

Travel across time zones

If you plan to travel across time zones, the following points should be noted:

  • Need to go to a new time zonecalculate, Although you have come to different countries from Shanghai to Singapore, because the two cities are in the same time zone, there is no need to convert the date or time; from Beijing to Tokyo, suppose you take a 3-hour flight. Since Tokyo is one hour faster than Beijing, don’t be surprised that the flight takes off at 10 am and arrives at 2 pm and arrives at 1 pm Beijing time, not the plane is late.
  • Pay special attention when crossing the date lineDate change: For example, on December 24th, Beijing time (UTC 8:00), a flight departing at 9 o'clock in the evening to San Francisco (UTC-8:00), the broadcast said that it will arrive in 11 hours, but it must not be counted as local time on December 25 9 o'clock in the morning-that's still Beijing time. To find the correct local time, subtract the time difference between the two time zones from 9 a.m. (, That is, the time difference between the two places is 16 hours), and what you get is 4 pm on the 24th. That is to say, because you cross the date line from west to east, you can spend Christmas Eve on the other side of the ocean. On the contrary, if you cross the date line from east to west, you will "lost" a day unknowingly.

If you still don’t know the time, it’s best to ask for the time locally; many airports and hotels provide multiple clocks adjusted to different time zones for easy conversion.

jet lag

See:jet lag

No matter where you are, your biological clock does not match the local time. This is calledjet lag. This is caused by the rapid travel of the time zone; coupled with the long time spent on the plane, it may cause you to sleep too much or not and cause time confusion. If the plane is flying from east to west, you will obviously get to sleep later and get up late, and you will not have the problem of time lag; the rule of thumb is to recover about 1 hour of difference every day. On the contrary, if it is flying eastward, such as flying from China to the United States, it is more likely to have a time lag problem. You may also find that when you have to adapt to the field, you will be better after only a few days; but you will really noticeWhen you return to your place of residenceIt takes a period of recovery. At that time, your biological clock will feel confused, which may take a while to recover.

You try to do your best time allocation and planning before you arrive at the local area as much as possible, so that you can help yourself solve the problem of jet lag. When you are expected to arrive in the local area during the day, it is recommended that you sleep on the plane before you arrive, so that you will have sufficient energy to do what you want after you arrive in the local area. Conversely, if you arrive at the local area at night, stay awake as much as possible on the plane to encourage yourself to feel tired after arriving at the local area, and then get a good night's sleep in the local area to welcome the good start of the next day.

Time zone list

UTC 14

UTC 13:45

UTC 13

13:48, Stratford, New Zealand

UTC 12:45

UTC 12

UTC 11:30

UTC 11

15:15, Sydney Central Railway Station

UTC 10:30

UTC 10

UTC 9:30

UTC 9

13:53, Tokyo, Japan

UTC 8

23:25, Kuala Lumpur, Malaysia

UTC 7

09:29, Thailand's warm song

UTC 6:30

UTC 6

UTC 5:45

UTC 5:30

17:01, Kerala, India

UTC 5

UTC 4:30

UTC 4

13:52, Volgograd, Russia

UTC 3:30

UTC 3

10:43, Moshi, Tanzania

UTC 2

21:50, Sighisoara, Romania

UTC 1

13:52, Seligenstadt, Germany
19:57, Tripoli, Libya

UTC

12:00, Big Ben, London
15:38, Evora, Portugal

UTC-1

UTC-2

UTC-3

17:24, Buenos Aires, Argentina

UTC-3:30

UTC-4

16:27, Halifax, Canada

UTC-4:30

UTC-5

15:20, Independence Hall, Philadelphia, USA

UTC-6

11:38, Mexico City

UTC-7

UTC-8

23:36, San Diego, California, USA

UTC-9

UTC-9:30

UTC-10

15:03, Honolulu, Hawaii, USA

UTC-11

UTC-12

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