GMT to UTC
GMT is UTC+0 and UTC is UTC+0 today — the same clock. Abbreviations are for reading: this page resolves GMT to Europe/London and UTC to UTC, which are the names that do not go ambiguous.
GMT: London in winter; British Summer Time in summer.
The working day, side by side
Hours shaded in both rows are inside working hours on both sides. Current abbreviations: GMT and UTC+0.
| City | 00:00 in GMT | 01:00 in GMT | 02:00 in GMT | 03:00 in GMT | 04:00 in GMT | 05:00 in GMT | 06:00 in GMT | 07:00 in GMT | 08:00 in GMT | 09:00 in GMT | 10:00 in GMT | 11:00 in GMT | 12:00 in GMT | 13:00 in GMT | 14:00 in GMT | 15:00 in GMT | 16:00 in GMT | 17:00 in GMT | 18:00 in GMT | 19:00 in GMT | 20:00 in GMT | 21:00 in GMT | 22:00 in GMT | 23:00 in GMT |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GMT—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| UTC—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
- Working hours
- Shoulder
- Night
- Overlap
Do more with GMT and UTC
Common questions
What is GMT in UTC?
GMT and UTC are the same offset today, so no conversion is needed.
Is GMT the same all year?
London in winter; British Summer Time in summer. An abbreviation describes an offset at a moment, not a place — the zone identifier Europe/London is the unambiguous name.
When can GMT and UTC meet?
Working hours overlap for 9 hours a day: the shaded overlap is 09:00–18:00 in UTC (09:00–18:00 your time).