This GMT to UTC converter turns any time in Greenwich Mean Time (GMT) into Coordinated Universal Time (UTC), using your device clock so daylight saving is applied automatically. UTC and GMT show the same time. GMT is UTC+0; UTC is UTC+0.
GMT covers Accra, Dakar, London in winter; UTC covers Reykjavik (same clock), servers and aviation. Neither zone observes daylight saving time, so the difference is the same every day of the year.
GMT and UTC UTC offsets
GMT
UTC+0
Greenwich Mean Time
No daylight saving time
UTC
UTC+0
Coordinated Universal Time
No daylight saving time
GMT to UTC conversion table
| GMT | UTC |
|---|---|
| 12 am | 12 am |
| 3 am | 3 am |
| 6 am | 6 am |
| 8 am | 8 am |
| 9 am | 9 am |
| 10 am | 10 am |
| 11 am | 11 am |
| 12 pm | 12 pm |
| 1 pm | 1 pm |
| 2 pm | 2 pm |
| 3 pm | 3 pm |
| 4 pm | 4 pm |
| 5 pm | 5 pm |
| 6 pm | 6 pm |
| 8 pm | 8 pm |
| 10 pm | 10 pm |
Frequently asked questions
What is the time difference between GMT and UTC?
UTC and GMT show the same time. That comes from the UTC offsets: GMT is UTC+0 and UTC is UTC+0. For example, 9 am GMT = 9 am UTC.
Is UTC ahead of or behind GMT?
Neither. GMT and UTC share the same clock time all year. UTC is a time standard, not a zone with DST, which is why GMT and UTC read the same even though GMT is strictly a zone name.
Does GMT or UTC observe daylight saving time in 2026?
No. Neither GMT nor UTC changes its clocks, so the 0 hours difference holds every day of the year. That makes recurring meetings between Accra and Reykjavik (same clock) easy to keep at a fixed local time on both ends.
What is the best time for a meeting between GMT and UTC?
Standard office hours (9 am to 5 pm) overlap from 9 am to 5 pm GMT, which is 9 am to 5 pm UTC. Pick a slot inside that window and both sides stay within a normal working day. Check the daylight saving dates above, because the window moves by an hour when only one side has changed clocks.
Which cities use GMT and UTC?
GMT (Greenwich Mean Time) is used in Accra, Dakar, London in winter. UTC (Coordinated Universal Time) is used in Reykjavik (same clock), servers and aviation. Note that the United Kingdom is only on GMT in winter; from late March to late October London runs on British Summer Time, one hour ahead, so use the BST pages for UK business hours in summer.