See, in this Fig.1 I have drawn 3 lines. This means that, for instance, if a deadline has not passed in the UTCâ12:00 zone, the deadline has not yet passed "Anywhere on Earth". The International Date Line, established in 1884, passes through the mid-Pacific Ocean and roughly follows a 180 degrees longitude north-south line on the Earth. Hi, I am now sharing the idea in much easier way. If you cross the International Date Line on a journey towards the east, then 24 hours are subtracted from your time. If you cross it when going west, then 24 hours are added to your time. Similarly, for every 15° crossed when heading east, you earn an hour and for every 15° crossed when heading west, you lose one. The International Date Line (IDL), is an imaginary line that runs roughly along the 180° line of longitude, in the middle of the Pacific Ocean. International Date Line West (GMT-12:00) The importance of international date line (west) is that if you cross the international date line then the date will change. It is the globe that rotates through time of day positions. The International Date Line, shown here as a yellow line, defines the boundary between calendar dates. For example if you travel across the international date line from East to West then your date will change to the next date. This free time zone calculator converts between different time zones around the world using GMT format, and provides a map delineating standard time zones across the world. Added 45 days ago|10/25/2020 4:01:37 PM If you flew across the International Date Line, traveling from east to west, you would land in the next day Log in for more information. International convention accepts the line as the location where one day is divided from the next, with the area in the Eastern Hemisphere one day ahead of the Western Hemisphere. International Date Line West als Standard setzen. Since the International Date Line West (IDLW) time zone represents the last place on Earth where a particular time and/or date exists, it is referred to as Anywhere on Earth (AoE). 0° or Greenwich Meridian , then 180° East and 180°West which is a same line but I have taken as two different lines. Times of day are fixed orientations on the globe in relation to the sun (12:00 noon directly faces the sun, and 12:00 midnight 180 degrees the opposite). This is to account for the many time zones around the world to make it easier for people to know what time it is in various countries and to keep days uniform based on daylight hours. In addition, explore hundreds of other calculators addressing finance, math, fitness, health, and more. Zu Favoriten hinzufügen. Time difference from International Date Line West. The International Date Line around 180° The International Date Line (IDL), also known as just the Date Line, is an imaginary line on the surface of the Earth opposite the Prime Meridian which offsets the date as one travels east or west across it. The International Date Line is located at 180 degrees east or west of the Greenwich Meridian and is an imaginary line of longitude that differentiates between two different days.