What does GMT stand for?

GMT stands for Greenwich Mean Time. It is UTC+0 and is used in: United Kingdom, Ireland, Portugal.

What time is it in GMT right now?

The live clock above shows the current time in GMT (UTC+0). It updates every second using your browser's built-in time API.

Which countries or regions use GMT?

GMT is used in the following regions: United Kingdom, Ireland, Portugal. Note that some regions may use a different abbreviation for the same offset during Daylight Saving Time.

Is GMT the same as UTC+0?

Yes. GMT is the standard abbreviation for the UTC+0 offset. However, the same UTC offset can have multiple abbreviations depending on the region and whether Daylight Saving Time is in effect.

How do I convert GMT time to my local time?

Use the Compare tool on HOUR — add GMT and your city side by side to see the exact difference instantly. You can also use the Time Simulator on the home page to drag through any hour and see both times simultaneously.

Does GMT observe Daylight Saving Time?

Standard time zone abbreviations like GMT refer to a fixed offset (UTC+0). If a region using GMT observes DST, it switches to a different abbreviation during summer — for example, EST switches to EDT. The clock on each region's page always reflects the correct current offset.

What is the difference between GMT and similar time zones?

Time zone abbreviations are not always globally unique — the same letters can refer to different offsets in different regions. GMT on this page specifically refers to Greenwich Mean Time (UTC+0). Always verify the UTC offset when scheduling across regions to avoid confusion.

Can I schedule a meeting across GMT and other time zones?

Yes. Use the Compare page on HOUR — add GMT and any other cities or time zones. The side-by-side view shows all local times simultaneously, making it easy to find a meeting slot that works for everyone.

How accurate is the GMT clock on this page?

The clock uses your browser's built-in Intl.DateTimeFormat API, which reads directly from your device's system clock and applies the correct IANA timezone offset. There is no server delay — the time is always accurate to the second.

GMTUTC+0

Greenwich Mean Time

United Kingdom · Ireland · Portugal

vs. your location

-8h from your location

GMT|Standard Time Zone

Daytime

GMT Time

--:--:--

Abbreviation

GMT

UTC Offset

UTC+0

Used in

United Kingdom · Ireland · Portugal

Related Time Zones

View all 44 →

BST

UTC+1

→

UTC

UTC+0

→

CET

UTC+1

→

WET

UTC+0

→

WAT

UTC+1

→

Browse All 44 Time Zone Abbreviations →

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GMT Time — Greenwich Mean Time

GMT stands for Greenwich Mean Time and is currently UTC+0. This page shows the live current time for the GMT time zone, used across United Kingdom, Ireland, Portugal.

How to Use This Page

1
Check the live GMT clock
The clock updates every second and always shows the current time in the GMT (Greenwich Mean Time, UTC+0) time zone.
2
Understand the UTC offset
GMT is UTC+0 — meaning it is that many hours ahead or behind Coordinated Universal Time (UTC).
3
See which regions use GMT
The regions listed on this page all share the GMT time zone. Tap any region to open its dedicated clock page.
4
Compare with your location
Open the Compare page and add GMT to see your local time and GMT time side by side.

Greenwich Mean Time

GMT Time

Related Time Zones

Everything You Need for World Time

Side-by-Side Comparison

Smart Search

Time Simulator

280+ Countries & Regions

GMT Time — Greenwich Mean Time

How to Use This Page

Frequently Asked Questions — GMT (Greenwich Mean Time)

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