sun .5deg.comSunrise, Sunset, Solar noon and Sun position here: Dumai, Indonesia (Riau), for period: September 2026. Longest day in month: September 2026: 12 hours, 8 minutes, 48 seconds (2026-09-01). Shortest day in this month: 12 hours, 6 minutes , 9 seconds (2026-09-30).
:September 2026, Solar noon=>Altitude: maximal 89.88° (2026-09-19, 12:08:06). minimal: 83.23° (2026-09-01, 12:14:19)
Table view of above data:
| date | Day | Sunrise | Solar noon | Sunset | Day Length |
| 01 | Tuesday | 06:09:55 | 12:14:19 | 18:18:43 | 12h 8m 48s |
| 02 | Wednesday | 06:09:39 | 12:14:00 | 18:18:21 | 12h 8m 42s |
| 03 | Thursday | 06:09:22 | 12:13:40 | 18:17:58 | 12h 8m 36s |
| 04 | Friday | 06:09:05 | 12:13:20 | 18:17:36 | 12h 8m 31s |
| 05 | Saturday | 06:08:48 | 12:13:01 | 18:17:13 | 12h 8m 25s |
| 06 | Sunday | 06:08:30 | 12:12:40 | 18:16:50 | 12h 8m 20s |
| 07 | Monday | 06:08:13 | 12:12:20 | 18:16:27 | 12h 8m 14s |
| 08 | Tuesday | 06:07:55 | 12:11:59 | 18:16:04 | 12h 8m 9s |
| 09 | Wednesday | 06:07:37 | 12:11:39 | 18:15:40 | 12h 8m 3s |
| 10 | Thursday | 06:07:19 | 12:11:18 | 18:15:17 | 12h 7m 58s |
| 11 | Friday | 06:07:01 | 12:10:57 | 18:14:53 | 12h 7m 52s |
| 12 | Saturday | 06:06:42 | 12:10:35 | 18:14:29 | 12h 7m 47s |
| 13 | Sunday | 06:06:24 | 12:10:14 | 18:14:05 | 12h 7m 41s |
| 14 | Monday | 06:06:05 | 12:09:53 | 18:13:41 | 12h 7m 36s |
| 15 | Tuesday | 06:05:46 | 12:09:31 | 18:13:17 | 12h 7m 31s |
| 16 | Wednesday | 06:05:28 | 12:09:10 | 18:12:52 | 12h 7m 24s |
| 17 | Thursday | 06:05:09 | 12:08:49 | 18:12:28 | 12h 7m 19s |
| 18 | Friday | 06:04:50 | 12:08:27 | 18:12:04 | 12h 7m 14s |
| 19 | Saturday | 06:04:32 | 12:08:06 | 18:11:40 | 12h 7m 8s |
| 20 | Sunday | 06:04:13 | 12:07:44 | 18:11:16 | 12h 7m 3s |
| 21 | Monday | 06:03:54 | 12:07:23 | 18:10:52 | 12h 6m 58s |
| 22 | Tuesday | 06:03:36 | 12:07:02 | 18:10:28 | 12h 6m 52s |
| 23 | Wednesday | 06:03:17 | 12:06:41 | 18:10:04 | 12h 6m 47s |
| 24 | Thursday | 06:02:59 | 12:06:20 | 18:09:40 | 12h 6m 41s |
| 25 | Friday | 06:02:41 | 12:05:59 | 18:09:17 | 12h 6m 36s |
| 26 | Saturday | 06:02:23 | 12:05:38 | 18:08:53 | 12h 6m 30s |
| 27 | Sunday | 06:02:05 | 12:05:18 | 18:08:30 | 12h 6m 25s |
| 28 | Monday | 06:01:47 | 12:04:57 | 18:08:07 | 12h 6m 20s |
| 29 | Tuesday | 06:01:30 | 12:04:37 | 18:07:44 | 12h 6m 14s |
| 30 | Wednesday | 06:01:13 | 12:04:17 | 18:07:22 | 12h 6m 9s |