sun .5deg.comSunrise, Sunset, Solar noon and Sun position here: Vĩnh Yên, Vietnam (Vĩnh Phúc), for period: September 2026. Longest day in month: September 2026: 12 hours, 33 minutes, 22 seconds (2026-09-01). Shortest day in this month: 11 hours, 58 minutes , 33 seconds (2026-09-30).
:September 2026, Solar noon=>Altitude: maximal 77.13° (2026-09-01, 11:57:40). minimal: 66.07° (2026-09-30, 11:47:39)
Table view of above data:
| date | Day | Sunrise | Solar noon | Sunset | Day Length |
| 01 | Tuesday | 05:40:59 | 11:57:40 | 18:14:21 | 12h 33m 22s |
| 02 | Wednesday | 05:41:15 | 11:57:21 | 18:13:27 | 12h 32m 12s |
| 03 | Thursday | 05:41:31 | 11:57:02 | 18:12:33 | 12h 31m 2s |
| 04 | Friday | 05:41:46 | 11:56:42 | 18:11:38 | 12h 29m 52s |
| 05 | Saturday | 05:42:01 | 11:56:22 | 18:10:42 | 12h 28m 41s |
| 06 | Sunday | 05:42:17 | 11:56:02 | 18:09:47 | 12h 27m 30s |
| 07 | Monday | 05:42:32 | 11:55:41 | 18:08:51 | 12h 26m 19s |
| 08 | Tuesday | 05:42:47 | 11:55:21 | 18:07:55 | 12h 25m 8s |
| 09 | Wednesday | 05:43:02 | 11:55:00 | 18:06:58 | 12h 23m 56s |
| 10 | Thursday | 05:43:17 | 11:54:39 | 18:06:01 | 12h 22m 44s |
| 11 | Friday | 05:43:32 | 11:54:18 | 18:05:04 | 12h 21m 32s |
| 12 | Saturday | 05:43:47 | 11:53:57 | 18:04:07 | 12h 20m 20s |
| 13 | Sunday | 05:44:01 | 11:53:36 | 18:03:10 | 12h 19m 9s |
| 14 | Monday | 05:44:16 | 11:53:14 | 18:02:12 | 12h 17m 56s |
| 15 | Tuesday | 05:44:31 | 11:52:53 | 18:01:15 | 12h 16m 44s |
| 16 | Wednesday | 05:44:46 | 11:52:31 | 18:00:17 | 12h 15m 31s |
| 17 | Thursday | 05:45:00 | 11:52:10 | 17:59:20 | 12h 14m 20s |
| 18 | Friday | 05:45:15 | 11:51:49 | 17:58:22 | 12h 13m 7s |
| 19 | Saturday | 05:45:30 | 11:51:27 | 17:57:24 | 12h 11m 54s |
| 20 | Sunday | 05:45:45 | 11:51:06 | 17:56:26 | 12h 10m 41s |
| 21 | Monday | 05:46:00 | 11:50:44 | 17:55:29 | 12h 9m 29s |
| 22 | Tuesday | 05:46:15 | 11:50:23 | 17:54:31 | 12h 8m 16s |
| 23 | Wednesday | 05:46:31 | 11:50:02 | 17:53:33 | 12h 7m 2s |
| 24 | Thursday | 05:46:46 | 11:49:41 | 17:52:36 | 12h 5m 50s |
| 25 | Friday | 05:47:02 | 11:49:20 | 17:51:39 | 12h 4m 37s |
| 26 | Saturday | 05:47:17 | 11:48:59 | 17:50:42 | 12h 3m 25s |
| 27 | Sunday | 05:47:33 | 11:48:39 | 17:49:45 | 12h 2m 12s |
| 28 | Monday | 05:47:49 | 11:48:19 | 17:48:48 | 12h 0m 59s |
| 29 | Tuesday | 05:48:06 | 11:47:59 | 17:47:51 | 11h 59m 45s |
| 30 | Wednesday | 05:48:22 | 11:47:39 | 17:46:55 | 11h 58m 33s |