Instant time conversion between world locations

View local current time differences and GMT offsets

GMT is both a time zone and the reference point for the Prime Meridian

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Find out what is GMT and why is the Prime Meridian so important for the time zone structure.

Looking for current time in a particular country? Use the World Clock and then compare time differences or offsets with the Time Zone Converter

Choose a region

Portal to time converters by region

The United Kingdom uses GMT only during winter months and British Summer Time (BST) during summer months.

British Summer Time is in its way unique, not just because of its name. As it happens quite often, scientific facts provide surprising insights.

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