sun .5deg.comSunrise, Sunset, Solar noon and Sun position here: Dien Bien Phu, Vietnam (Tỉnh Ðiện Biên), for period: September 2026. Longest day in month: September 2026: 12 hours, 33 minutes, 28 seconds (2026-09-01). Shortest day in this month: 11 hours, 58 minutes , 31 seconds (2026-09-30).
:September 2026, Solar noon=>Altitude: maximal 77.06° (2026-09-01, 12:08:00). minimal: 65.99° (2026-09-30, 11:57:58)
Table view of above data:
| date | Day | Sunrise | Solar noon | Sunset | Day Length |
| 01 | Tuesday | 05:51:16 | 12:08:00 | 18:24:44 | 12h 33m 28s |
| 02 | Wednesday | 05:51:32 | 12:07:41 | 18:23:50 | 12h 32m 18s |
| 03 | Thursday | 05:51:47 | 12:07:21 | 18:22:55 | 12h 31m 8s |
| 04 | Friday | 05:52:03 | 12:07:01 | 18:22:00 | 12h 29m 57s |
| 05 | Saturday | 05:52:19 | 12:06:41 | 18:21:04 | 12h 28m 45s |
| 06 | Sunday | 05:52:34 | 12:06:21 | 18:20:09 | 12h 27m 35s |
| 07 | Monday | 05:52:49 | 12:06:01 | 18:19:12 | 12h 26m 23s |
| 08 | Tuesday | 05:53:05 | 12:05:40 | 18:18:16 | 12h 25m 11s |
| 09 | Wednesday | 05:53:20 | 12:05:20 | 18:17:19 | 12h 23m 59s |
| 10 | Thursday | 05:53:35 | 12:04:59 | 18:16:22 | 12h 22m 47s |
| 11 | Friday | 05:53:50 | 12:04:38 | 18:15:25 | 12h 21m 35s |
| 12 | Saturday | 05:54:05 | 12:04:16 | 18:14:28 | 12h 20m 23s |
| 13 | Sunday | 05:54:20 | 12:03:55 | 18:13:31 | 12h 19m 11s |
| 14 | Monday | 05:54:34 | 12:03:34 | 18:12:33 | 12h 17m 59s |
| 15 | Tuesday | 05:54:49 | 12:03:12 | 18:11:35 | 12h 16m 46s |
| 16 | Wednesday | 05:55:04 | 12:02:51 | 18:10:38 | 12h 15m 34s |
| 17 | Thursday | 05:55:19 | 12:02:29 | 18:09:40 | 12h 14m 21s |
| 18 | Friday | 05:55:34 | 12:02:08 | 18:08:42 | 12h 13m 8s |
| 19 | Saturday | 05:55:49 | 12:01:47 | 18:07:44 | 12h 11m 55s |
| 20 | Sunday | 05:56:04 | 12:01:25 | 18:06:46 | 12h 10m 42s |
| 21 | Monday | 05:56:20 | 12:01:04 | 18:05:48 | 12h 9m 28s |
| 22 | Tuesday | 05:56:35 | 12:00:43 | 18:04:50 | 12h 8m 15s |
| 23 | Wednesday | 05:56:50 | 12:00:22 | 18:03:53 | 12h 7m 3s |
| 24 | Thursday | 05:57:06 | 12:00:01 | 18:02:55 | 12h 5m 49s |
| 25 | Friday | 05:57:22 | 11:59:40 | 18:01:58 | 12h 4m 36s |
| 26 | Saturday | 05:57:37 | 11:59:19 | 18:01:00 | 12h 3m 23s |
| 27 | Sunday | 05:57:54 | 11:58:58 | 18:00:03 | 12h 2m 9s |
| 28 | Monday | 05:58:10 | 11:58:38 | 17:59:07 | 12h 0m 57s |
| 29 | Tuesday | 05:58:26 | 11:58:18 | 17:58:10 | 11h 59m 44s |
| 30 | Wednesday | 05:58:43 | 11:57:58 | 17:57:14 | 11h 58m 31s |