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About the Time Zone Map

The timeanddate.com Time Zone Map gives an overview of current local times around the world. It takes into account daylight saving time (DST) changes worldwide.

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How does the interactive Time Zone Map work – legend:

24 main time zones

The map is divided into 24 main time zones. Each time zone is defined by the current time difference – or offset – from Coordinated Universal Time (UTC), shown in whole hours at the bottom of the map. Example: +3 means that the time zone is 3 hours ahead of UTC. On land, time zones are represented by areas of different colors, in international waters by blue and white columns.

What do the diagonal stripes mean?

The time difference between each time zone is usually one hour, except in the diagonally striped areas, where it can be half hours or even quarter hours. For example, India is 5:30 hours ahead of UTC.

International date line

The map's version of the International Date Line, shown between Asia/the Pacific and the Americas, is not drawn to full accuracy.

Always current including DST changes

The Time Zone Map is dynamic as it shows areas that currently follow the same local time - and not static time zones, like many other available maps. This means that time zone boundaries shift every time a country switches between standard time and daylight saving time. Timeanddate.com closely monitor these switches and any changes in legislation and apply them to the Time Zone Map as well as publish stories in our Time Zone News (with RSS feed)

Why are the lines straight in the ocean but not on land?

The local time in international waters is defined by the longitude only. On land, however, political and geographic factors lead to distortions. That's why land areas that share the same longitude with sea areas may not be in the same time zone (for example UTC offset +11).

Do people at sea change their clocks according to the time zones?

The map shows a simplified version of the time zones at sea. Vessels and offshore platforms that operate within a country's exclusive economic zone or in the immediate vicinity of a landmass typically observe the current local time observed on land.

More about Time Zones

Please have a look at the time zone information page for an explanation on how the boundaries are defined and why they are used. We also have a brief history of time zones.


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