Dumai on 15 October 2026: sunrise 05:57, sunset 18:02, day length 12 h 5 min.
| Fact | Value |
|---|---|
| Time zone | Asia/Jakarta |
| Offset | UTC+7 |
| Region | Riau |
| Latitude | 1.6671 |
| Longitude | 101.4432 |
| Population | 349,389 |
Dumai has no clock change scheduled in the next year. January and July both use UTC+7.
| Fact | Value |
|---|---|
| Longest day | 21 June 2026, 12 h 13 min |
| Shortest day | 21 December 2026, 12 h 2 min |
| Earliest sunrise | 05:56 on 1 November 2026 |
| Latest sunset | 18:30 on 14 February 2026 |
| Golden hour on the longest day | 21 June morning 06:09 to 06:39, evening 17:52 to 18:22 |
| Date | Holiday |
|---|---|
| 25 December 2026 | Hari Raya Natal |
| 1 January 2027 | Hari tahun baru |
| 5 January 2027 | Maulid Nabi Muhammad |
| City | 09:00 to 17:00 |
|---|---|
| London | Dumai 15:00 to 17:00; London 09:00 to 11:00 |
| New York | Dumai and New York have no hour that is 09:00 to 17:00 in both cities. |