GMT to UTC Converter
Convert Greenwich Mean Time (GMT) to Coordinated Universal Time (UTC).
Right now, Coordinated Universal Time (UTC) is 1 hour behind Greenwich Mean Time (BST). (BST is UTC+1, UTC is UTC+0.)
Common GMT → UTC times
GMT to UTC conversion table
| Greenwich Mean Time (GMT) | Coordinated Universal Time (UTC) |
|---|---|
| 12:00 AM | 11:00 PM (prev. day) |
| 1:00 AM | 12:00 AM |
| 2:00 AM | 1:00 AM |
| 3:00 AM | 2:00 AM |
| 4:00 AM | 3:00 AM |
| 5:00 AM | 4:00 AM |
| 6:00 AM | 5:00 AM |
| 7:00 AM | 6:00 AM |
| 8:00 AM | 7:00 AM |
| 9:00 AM | 8:00 AM |
| 10:00 AM | 9:00 AM |
| 11:00 AM | 10:00 AM |
| 12:00 PM | 11:00 AM |
| 1:00 PM | 12:00 PM |
| 2:00 PM | 1:00 PM |
| 3:00 PM | 2:00 PM |
| 4:00 PM | 3:00 PM |
| 5:00 PM | 4:00 PM |
| 6:00 PM | 5:00 PM |
| 7:00 PM | 6:00 PM |
| 8:00 PM | 7:00 PM |
| 9:00 PM | 8:00 PM |
| 10:00 PM | 9:00 PM |
| 11:00 PM | 10:00 PM |
Times reflect the current date and update automatically for daylight saving time.
Converting Greenwich Mean Time to Coordinated Universal Time
Greenwich Mean Time (GMT) covers London, Dublin, Lisbon, while Coordinated Universal Time (UTC) covers Global time standard. The current offset between them is 1 hour, with UTC behind GMT. Because at least one of these zones observes daylight saving time, the exact difference can shift by an hour at certain times of year — this page recalculates automatically so it is always current.
Frequently asked questions
What is the time difference between GMT and UTC?
UTC (Coordinated Universal Time) is currently 1 hour behind GMT (Greenwich Mean Time).
Is UTC ahead of or behind GMT?
UTC is 1 hour behind GMT as of the current date.
What is 9:00 AM GMT in UTC?
9:00 AM GMT is 8:00 AM in UTC.
Does Greenwich Mean Time (GMT) observe daylight saving time?
Yes. Greenwich Mean Time switches to BST during daylight saving time, and this converter adjusts the offset automatically. It is currently on BST.