time zone

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Images

World map showing standard time zones, with each zone shaded and labeled by its offset from Greenwich Mean Time. The International Date Line is marked with a bold, zigzagging line in the Pacific Ocean, and variations for half-hour and other non-standard offsets are indicated. Continents, major countries, and oceans are labeled for reference.

Map centered on New York, showing major international flight paths to cities such as London, Rome, Delhi, Sydney, Tokyo, and Honolulu. Arrows indicate the direction of travel, with numbers around the edge representing time zones crossed. A scale at the bottom explains that crossing one time zone equates to approximately one day of jet lag, with days of jet lag increasing as more time zones are crossed.

time zone: Media

chronometry

Images

World map showing standard time zones, with each zone shaded and labeled by its offset from Greenwich Mean Time. The International Date Line is marked with a bold, zigzagging line in the Pacific Ocean, and variations for half-hour and other non-standard offsets are indicated. Continents, major countries, and oceans are labeled for reference.

World time zones

A time zone map showing standard time zones and the International Date Line.

Encyclopædia Britannica, Inc.

Map centered on New York, showing major international flight paths to cities such as London, Rome, Delhi, Sydney, Tokyo, and Honolulu. Arrows indicate the direction of travel, with numbers around the edge representing time zones crossed. A scale at the bottom explains that crossing one time zone equates to approximately one day of jet lag, with days of jet lag increasing as more time zones are crossed.

jet lag

Map showing travel from New York City to cities around the world. Each number corresponds...

Encyclopædia Britannica, Inc.

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