15:00 GMT to BRT
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
Brasília Time
America/Sao_Paulo is currently on UTC-03:00 (UTC-03:00). That is not BRT — 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-03:00
Brasília Time is UTC-3. Brazil abolished daylight saving in 2019, so the offset no longer moves — a rule change many stale converters still get wrong.
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
6 overlapping working hours. The longest run is 12:00–18:00 GMT, which is 09:00–15:00 BRT.
GMT to BRT, hour by hour 13 August 2026 · every row is a permalink
| GMT | BRT | 12-hour | Day | Permalink |
|---|---|---|---|---|
| 00:00 | 21:00 UTC-03:00 | 9:00 PM | previous day | 00:00 → |
| 01:00 | 22:00 UTC-03:00 | 10:00 PM | previous day | 01:00 → |
| 02:00 | 23:00 UTC-03:00 | 11:00 PM | previous day | 02:00 → |
| 03:00 | 00:00 UTC-03:00 | 12:00 AM | same day | 03:00 → |
| 04:00 | 01:00 UTC-03:00 | 1:00 AM | same day | 04:00 → |
| 05:00 | 02:00 UTC-03:00 | 2:00 AM | same day | 05:00 → |
| 06:00 | 03:00 UTC-03:00 | 3:00 AM | same day | 06:00 → |
| 07:00 | 04:00 UTC-03:00 | 4:00 AM | same day | 07:00 → |
| 08:00 | 05:00 UTC-03:00 | 5:00 AM | same day | 08:00 → |
| 09:00 | 06:00 UTC-03:00 | 6:00 AM | same day | 09:00 → |
| 10:00 | 07:00 UTC-03:00 | 7:00 AM | same day | 10:00 → |
| 11:00 | 08:00 UTC-03:00 | 8:00 AM | same day | 11:00 → |
| 12:00 | 09:00 UTC-03:00 | 9:00 AM | same day | 12:00 → |
| 13:00 | 10:00 UTC-03:00 | 10:00 AM | same day | 13:00 → |
| 14:00 | 11:00 UTC-03:00 | 11:00 AM | same day | 14:00 → |
| 15:00 | 12:00 UTC-03:00 | 12:00 PM | same day | 15:00 → |
| 16:00 | 13:00 UTC-03:00 | 1:00 PM | same day | 16:00 → |
| 17:00 | 14:00 UTC-03:00 | 2:00 PM | same day | 17:00 → |
| 18:00 | 15:00 UTC-03:00 | 3:00 PM | same day | 18:00 → |
| 19:00 | 16:00 UTC-03:00 | 4:00 PM | same day | 19:00 → |
| 20:00 | 17:00 UTC-03:00 | 5:00 PM | same day | 20:00 → |
| 21:00 | 18:00 UTC-03:00 | 6:00 PM | same day | 21:00 → |
| 22:00 | 19:00 UTC-03:00 | 7:00 PM | same day | 22:00 → |
| 23:00 | 20:00 UTC-03:00 | 8:00 PM | same day | 23:00 → |