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GMT+1 Offset: Countries and Regions

Greenwich Mean Time (GMT) plus 1 hours

Military Time Zone name for +1 offset is: A - Alpha

Current Time in GMT+1 offset

Browse all GMT offsets

Nowadays, Greenwich Mean Time, abbreviated as GMT, is a time zone designation rather than a time standard. Time difference between time zones can be expressed by the GMT or UTC offset. In the UTC standard, there is a commitment to keep within 0.9 seconds of GMT, so that every few years a leap second is applied to UTC. In the age of the internet, these small clock calibrations are conveniently destributed via NTP.

UTC/GMT+1 is 1 hour ahead of Greenwich Mean Time (GMT).

UK, Ireland and Portugal are on GMT/UTC+1 only during the Daylight Saving Time (DST) period. The +1 offset applies to the Western European Time Zone (WET), under different designations for each country

UK Clock Changes and the Anatomy of a Second

Offset calculator

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GMT Time converter for time zone: GMT+1

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The following countries or regions use the offset +1 either in Standard time or Daylight Saving Time as indicated.

Standard Time

West Africa Time countries

Daylight Saving Time (DST)

UK on British Summer Time (BST) Portugal on Summer Time (WEST) Ireland on Summer Time (IST)

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