Standard Time

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Images & Videos

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.

Daylight Saving Time?

Standard Time: Media

Videos

Daylight Saving Time?

Daylight Saving Time?

Have you ever wondered what people mean when they say "spring forward" and "fall...

Video: Encyclopædia Britannica, Inc.

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.

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