GMT to UTC converter
GMT never changes for daylight saving time, and neither does UTC, so this gap stays the same all year.
Convert Greenwich Mean Time (GMT) to Coordinated Universal Time (UTC) for any date and time.
UTC and GMT show the same time all year.
Right now GMT is UTC+0 and UTC is UTC+0. Neither changes its clocks, so this never changes.
9:00 am to 5:00 pm GMT is 9:00 am to 5:00 pm UTC.
- 8:00 am GMT is 8:00 am UTC
- 9:00 am GMT is 9:00 am UTC
- 10:00 am GMT is 10:00 am UTC
- 12:00 pm GMT is 12:00 pm UTC
- 3:00 pm GMT is 3:00 pm UTC
- 5:00 pm GMT is 5:00 pm UTC
Hours in Greenwich Mean Time, Fri, Oct 23
Greenwich Mean Time
UTC+0 all year; the UK switches to BST in summer
Fri, Oct 23
GMT · UTC+0ReferenceWorking hoursCoordinated Universal Time
The world's reference time, UTC+0 all year
Fri, Oct 23
UTC · UTC+0Same time as Greenwich Mean TimeWorking hours
Best time to meet: 9:00 AM–5:00 PM in Greenwich Mean Time on Fri, Oct 23, when everyone is inside working hours.
Book a meeting in this windowWorking hours: 9:00 AM–5:00 PM, Monday to FridayEveryone at work
GMT to UTC conversion table
Every hour of the day in GMT, converted to UTC. Shaded cells are working hours (9:00 am to 5:00 pm); green rows are working hours in both zones.
| GMT | UTC |
|---|---|
| 12:00 am GMT | 12:00 am UTC |
| 1:00 am GMT | 1:00 am UTC |
| 2:00 am GMT | 2:00 am UTC |
| 3:00 am GMT | 3:00 am UTC |
| 4:00 am GMT | 4:00 am UTC |
| 5:00 am GMT | 5:00 am UTC |
| 6:00 am GMT | 6:00 am UTC |
| 7:00 am GMT | 7:00 am UTC |
| 8:00 am GMT | 8:00 am UTC |
| 9:00 am GMT | 9:00 am UTC |
| 10:00 am GMT | 10:00 am UTC |
| 11:00 am GMT | 11:00 am UTC |
| 12:00 pm GMT | 12:00 pm UTC |
| 1:00 pm GMT | 1:00 pm UTC |
| 2:00 pm GMT | 2:00 pm UTC |
| 3:00 pm GMT | 3:00 pm UTC |
| 4:00 pm GMT | 4:00 pm UTC |
| 5:00 pm GMT | 5:00 pm UTC |
| 6:00 pm GMT | 6:00 pm UTC |
| 7:00 pm GMT | 7:00 pm UTC |
| 8:00 pm GMT | 8:00 pm UTC |
| 9:00 pm GMT | 9:00 pm UTC |
| 10:00 pm GMT | 10:00 pm UTC |
| 11:00 pm GMT | 11:00 pm UTC |
Best times to meet
Your working hours overlap for 8 hours, from 9:00 am GMT (9:00 am UTC) to 5:00 pm GMT (5:00 pm UTC). That's the best window for a meeting.
About these time zones
GMT: Greenwich Mean Time
Greenwich Mean Time is UTC+0.
The same time as UTC. The UK, Ireland and Portugal use GMT in winter, then switch to summer time (BST in the UK) from late March to late October. Iceland and much of West Africa stay on GMT all year.
UTC: Coordinated Universal Time
Coordinated Universal Time is UTC+0.
The world's reference time. Every other zone is defined as an offset from UTC, and it never changes for daylight saving time. Servers, aviation and international deadlines use it.
How the difference changes
Neither changes its clocks, so GMT and UTC show the same time all year.