GMT to UTC-12 time converter
UTC-12 is 12 hours behind GMT. When it is 9:00 AM in GMT, it is 9:00 PM (Sun, Oct 18) in UTC-12.
6:45 PM in GMT, Monday, October 19, 2026
GMT to UTC-12 conversion table
Every hour of today in GMT and the matching time in UTC-12. Light rows are typical working hours (9:00–18:00).
| GMT | UTC-12 |
|---|---|
| 12:00 AM | 12:00 PM−1 day |
| 1:00 AM | 1:00 PM−1 day |
| 2:00 AM | 2:00 PM−1 day |
| 3:00 AM | 3:00 PM−1 day |
| 4:00 AM | 4:00 PM−1 day |
| 5:00 AM | 5:00 PM−1 day |
| 6:00 AM | 6:00 PM−1 day |
| 7:00 AM | 7:00 PM−1 day |
| 8:00 AM | 8:00 PM−1 day |
| 9:00 AM | 9:00 PM−1 day |
| 10:00 AM | 10:00 PM−1 day |
| 11:00 AM | 11:00 PM−1 day |
| 12:00 PM | 12:00 AM |
| 1:00 PM | 1:00 AM |
| 2:00 PM | 2:00 AM |
| 3:00 PM | 3:00 AM |
| 4:00 PM | 4:00 AM |
| 5:00 PM | 5:00 AM |
| 6:00 PM | 6:00 AM |
| 7:00 PM | 7:00 AM |
| 8:00 PM | 8:00 AM |
| 9:00 PM | 9:00 AM |
| 10:00 PM | 10:00 AM |
| 11:00 PM | 11:00 AM |
Best time to call or meet
Working hours don't overlap fully. The closest fit is 9:00 AM – 10:00 AM in GMT (9:00 PM – 10:00 PM in UTC-12): working hours on one side, early or late on the other.
Daylight saving time and the difference
The difference stays 12 hours all year.
More conversions
Questions and answers
What is the time difference between GMT and UTC-12?
UTC-12 is 12 hours behind GMT.
What time is it in UTC-12 when it is 9 AM in GMT?
When it is 9:00 AM in GMT, it is 9:00 PM (Sun, Oct 18) in UTC-12.
When is the best time to call UTC-12 from GMT?
Working hours don't overlap fully. The closest fit is 9:00 AM – 10:00 AM in GMT (9:00 PM – 10:00 PM in UTC-12): working hours on one side, early or late on the other.
Does the time difference between GMT and UTC-12 change?
No. The difference stays 12 hours all year.