UTC to GMT Time Converter
Convert Coordinated Universal Time to Greenwich Mean Time instantly.
Scroll the timeline to check any hour of the day.
Search any city, build a custom world clock, and plan across more time zones and options in the FlutterTime app. Free.
How the UTC to GMT time difference works
GMT is 1 hour ahead of UTC. Coordinated Universal Time (UTC) is the global time standard the world sets its clocks by.
Greenwich Mean Time (GMT) is the time zone of the United Kingdom and Ireland.
For example, 9:00 AM UTC is 10:00 AM GMT.
Scroll the timeline above to convert any moment, or use the chart below for a quick reference.
UTC to GMT conversion chart
| Coordinated Universal Time (UTC) |
Greenwich Mean Time (GMT) |
| 12:00 AM |
1:00 AM |
| 1:00 AM |
2:00 AM |
| 2:00 AM |
3:00 AM |
| 3:00 AM |
4:00 AM |
| 4:00 AM |
5:00 AM |
| 5:00 AM |
6:00 AM |
| 6:00 AM |
7:00 AM |
| 7:00 AM |
8:00 AM |
| 8:00 AM |
9:00 AM |
| 9:00 AM |
10:00 AM |
| 10:00 AM |
11:00 AM |
| 11:00 AM |
12:00 PM |
| 12:00 PM |
1:00 PM |
| 1:00 PM |
2:00 PM |
| 2:00 PM |
3:00 PM |
| 3:00 PM |
4:00 PM |
| 4:00 PM |
5:00 PM |
| 5:00 PM |
6:00 PM |
| 6:00 PM |
7:00 PM |
| 7:00 PM |
8:00 PM |
| 8:00 PM |
9:00 PM |
| 9:00 PM |
10:00 PM |
| 10:00 PM |
11:00 PM |
| 11:00 PM |
12:00 AM +1 day |
Best time to meet
A standard 9 to 5 workday overlaps from 9:00 AM to 4:00 PM UTC (10:00 AM to 5:00 PM GMT). Schedule inside that window to catch both coasts during business hours.
Cities in each time zone
Coordinated Universal Time (UTC)
ReykjavikAccraDakarAbidjanBamako
Greenwich Mean Time (GMT)
LondonDublinLisbonEdinburghManchester
UTC to GMT questions
Is GMT ahead of or behind UTC?
GMT is 1 hour ahead of UTC. So 9:00 AM UTC is 10:00 AM GMT, and 5:00 PM UTC is 6:00 PM GMT.
What time is it in GMT when it is 12:00 PM UTC?
When it is 12:00 PM (noon) UTC in Coordinated Universal Time, it is 1:00 PM GMT in Greenwich Mean Time.
How many hours difference is there between UTC and GMT?
There is a 1 hour difference. Greenwich Mean Time (GMT) runs 1 hour ahead of Coordinated Universal Time (UTC).
Do UTC and GMT observe daylight saving time?
Greenwich Mean Time observes daylight saving time but Coordinated Universal Time does not, so the difference between them changes by an hour twice a year.
What is the best time to schedule a meeting between UTC and GMT?
A standard 9-to-5 workday overlaps from 9:00 AM to 4:00 PM UTC (10:00 AM to 5:00 PM GMT). Scheduling inside that window keeps the call during business hours in both Coordinated Universal Time and Greenwich Mean Time.
Which cities use UTC and GMT?
Coordinated Universal Time (UTC) covers cities such as Reykjavik, Accra, Dakar, Abidjan, Bamako. Greenwich Mean Time (GMT) covers cities such as London, Dublin, Lisbon, Edinburgh, Manchester.
Related conversions
