21:00 GMT to SGT
Convert an exact time type it — no sliders
Conversion runs in your browser against the same IANA rules the server uses, so it keeps working offline and nothing you type is sent anywhere.
Daylight saving right now
Singapore Time
Asia/Singapore is currently on UTC+08:00 (UTC+08:00). That is not SGT — this page is named for the abbreviation people search for, and tells you the truth about which one is actually in force.
no clock change scheduled — this zone is fixed at UTC+08:00
Singapore Time is UTC+8 year-round with no daylight saving, shared with Kuala Lumpur and matching China Standard Time and AWST.
Greenwich Mean Time
Etc/GMT is on GMT (UTC+00:00).
no clock change scheduled — fixed at UTC+00:00
GMT is UTC+0 and never shifts. The UK observes GMT in winter only — in summer it is on BST (UTC+1), so "GMT" on a British invite dated in July usually means BST.
Best time to call green = 09:00–18:00 on both sides
1 overlapping working hours. The longest run is 09:00–10:00 GMT, which is 17:00–18:00 SGT.
GMT to SGT, hour by hour 13 August 2026 · every row is a permalink
| GMT | SGT | 12-hour | Day | Permalink |
|---|---|---|---|---|
| 00:00 | 08:00 UTC+08:00 | 8:00 AM | same day | 00:00 → |
| 01:00 | 09:00 UTC+08:00 | 9:00 AM | same day | 01:00 → |
| 02:00 | 10:00 UTC+08:00 | 10:00 AM | same day | 02:00 → |
| 03:00 | 11:00 UTC+08:00 | 11:00 AM | same day | 03:00 → |
| 04:00 | 12:00 UTC+08:00 | 12:00 PM | same day | 04:00 → |
| 05:00 | 13:00 UTC+08:00 | 1:00 PM | same day | 05:00 → |
| 06:00 | 14:00 UTC+08:00 | 2:00 PM | same day | 06:00 → |
| 07:00 | 15:00 UTC+08:00 | 3:00 PM | same day | 07:00 → |
| 08:00 | 16:00 UTC+08:00 | 4:00 PM | same day | 08:00 → |
| 09:00 | 17:00 UTC+08:00 | 5:00 PM | same day | 09:00 → |
| 10:00 | 18:00 UTC+08:00 | 6:00 PM | same day | 10:00 → |
| 11:00 | 19:00 UTC+08:00 | 7:00 PM | same day | 11:00 → |
| 12:00 | 20:00 UTC+08:00 | 8:00 PM | same day | 12:00 → |
| 13:00 | 21:00 UTC+08:00 | 9:00 PM | same day | 13:00 → |
| 14:00 | 22:00 UTC+08:00 | 10:00 PM | same day | 14:00 → |
| 15:00 | 23:00 UTC+08:00 | 11:00 PM | same day | 15:00 → |
| 16:00 | 00:00 UTC+08:00 | 12:00 AM | next day | 16:00 → |
| 17:00 | 01:00 UTC+08:00 | 1:00 AM | next day | 17:00 → |
| 18:00 | 02:00 UTC+08:00 | 2:00 AM | next day | 18:00 → |
| 19:00 | 03:00 UTC+08:00 | 3:00 AM | next day | 19:00 → |
| 20:00 | 04:00 UTC+08:00 | 4:00 AM | next day | 20:00 → |
| 21:00 | 05:00 UTC+08:00 | 5:00 AM | next day | 21:00 → |
| 22:00 | 06:00 UTC+08:00 | 6:00 AM | next day | 22:00 → |
| 23:00 | 07:00 UTC+08:00 | 7:00 AM | next day | 23:00 → |