sun .5deg.comSunrise, Sunset, Solar noon and Sun position here: Longyearbyen, Svalbard and Jan Mayen (Svalbard, Spitsbergen), for period: September 2023. Longest day in month: September 2023: 18 hours, 43 minutes, 44 seconds (2023-09-01). Shortest day in this month: 10 hours, 45 minutes , 44 seconds (2023-09-30).
:September 2023, Solar noon=>Altitude: maximal 20.21° (2023-09-01, 12:57:30). minimal: 9.15° (2023-09-30, 12:47:29)
Table view of above data:
| date | Day | Sunrise | Solar noon | Sunset | Day Length |
| 01 | Friday | 03:35:38 | 12:57:30 | 22:19:22 | 18h 43m 44s |
| 02 | Saturday | 03:46:13 | 12:57:11 | 22:08:10 | 18h 21m 57s |
| 03 | Sunday | 03:56:17 | 12:56:52 | 21:57:27 | 18h 1m 10s |
| 04 | Monday | 04:05:55 | 12:56:32 | 21:47:09 | 17h 41m 14s |
| 05 | Tuesday | 04:15:13 | 12:56:12 | 21:37:12 | 17h 21m 59s |
| 06 | Wednesday | 04:24:12 | 12:55:52 | 21:27:32 | 17h 3m 20s |
| 07 | Thursday | 04:32:55 | 12:55:32 | 21:18:08 | 16h 45m 13s |
| 08 | Friday | 04:41:25 | 12:55:11 | 21:08:57 | 16h 27m 32s |
| 09 | Saturday | 04:49:43 | 12:54:50 | 20:59:58 | 16h 10m 15s |
| 10 | Sunday | 04:57:50 | 12:54:29 | 20:51:08 | 15h 53m 18s |
| 11 | Monday | 05:05:48 | 12:54:08 | 20:42:28 | 15h 36m 40s |
| 12 | Tuesday | 05:13:38 | 12:53:47 | 20:33:56 | 15h 20m 18s |
| 13 | Wednesday | 05:21:21 | 12:53:26 | 20:25:30 | 15h 4m 9s |
| 14 | Thursday | 05:28:58 | 12:53:05 | 20:17:11 | 14h 48m 13s |
| 15 | Friday | 05:36:29 | 12:52:43 | 20:08:57 | 14h 32m 28s |
| 16 | Saturday | 05:43:55 | 12:52:22 | 20:00:48 | 14h 16m 53s |
| 17 | Sunday | 05:51:18 | 12:52:00 | 19:52:43 | 14h 1m 25s |
| 18 | Monday | 05:58:36 | 12:51:39 | 19:44:42 | 13h 46m 6s |
| 19 | Tuesday | 06:05:52 | 12:51:17 | 19:36:43 | 13h 30m 51s |
| 20 | Wednesday | 06:13:05 | 12:50:56 | 19:28:47 | 13h 15m 42s |
| 21 | Thursday | 06:20:16 | 12:50:35 | 19:20:54 | 13h 0m 38s |
| 22 | Friday | 06:27:25 | 12:50:13 | 19:13:02 | 12h 45m 37s |
| 23 | Saturday | 06:34:33 | 12:49:52 | 19:05:11 | 12h 30m 38s |
| 24 | Sunday | 06:41:41 | 12:49:31 | 18:57:22 | 12h 15m 41s |
| 25 | Monday | 06:48:48 | 12:49:10 | 18:49:33 | 12h 0m 45s |
| 26 | Tuesday | 06:55:56 | 12:48:50 | 18:41:44 | 11h 45m 48s |
| 27 | Wednesday | 07:03:04 | 12:48:29 | 18:33:55 | 11h 30m 51s |
| 28 | Thursday | 07:10:13 | 12:48:09 | 18:26:05 | 11h 15m 52s |
| 29 | Friday | 07:17:24 | 12:47:49 | 18:18:14 | 11h 0m 50s |
| 30 | Saturday | 07:24:37 | 12:47:29 | 18:10:21 | 10h 45m 44s |