sun .5deg.comSunrise, Sunset, Solar noon and Sun position here: Seongnam-si, South Korea (Gyeonggi-do), for period: September 2026. Longest day in month: September 2026: 12 hours, 59 minutes, 57 seconds (2026-09-01). Shortest day in this month: 11 hours, 51 minutes , 32 seconds (2026-09-30).
:September 2026, Solar noon=>Altitude: maximal 61.03° (2026-09-01, 12:31:33). minimal: 49.97° (2026-09-30, 12:21:32)
Table view of above data:
| date | Day | Sunrise | Solar noon | Sunset | Day Length |
| 01 | Tuesday | 06:01:35 | 12:31:33 | 19:01:32 | 12h 59m 57s |
| 02 | Wednesday | 06:02:25 | 12:31:14 | 19:00:04 | 12h 57m 39s |
| 03 | Thursday | 06:03:14 | 12:30:55 | 18:58:35 | 12h 55m 21s |
| 04 | Friday | 06:04:04 | 12:30:35 | 18:57:06 | 12h 53m 2s |
| 05 | Saturday | 06:04:54 | 12:30:15 | 18:55:37 | 12h 50m 43s |
| 06 | Sunday | 06:05:43 | 12:29:55 | 18:54:07 | 12h 48m 24s |
| 07 | Monday | 06:06:33 | 12:29:35 | 18:52:36 | 12h 46m 3s |
| 08 | Tuesday | 06:07:22 | 12:29:14 | 18:51:06 | 12h 43m 44s |
| 09 | Wednesday | 06:08:12 | 12:28:53 | 18:49:35 | 12h 41m 23s |
| 10 | Thursday | 06:09:01 | 12:28:32 | 18:48:03 | 12h 39m 2s |
| 11 | Friday | 06:09:51 | 12:28:11 | 18:46:32 | 12h 36m 41s |
| 12 | Saturday | 06:10:40 | 12:27:50 | 18:45:00 | 12h 34m 20s |
| 13 | Sunday | 06:11:30 | 12:27:29 | 18:43:28 | 12h 31m 58s |
| 14 | Monday | 06:12:20 | 12:27:08 | 18:41:56 | 12h 29m 36s |
| 15 | Tuesday | 06:13:09 | 12:26:46 | 18:40:23 | 12h 27m 14s |
| 16 | Wednesday | 06:13:59 | 12:26:25 | 18:38:51 | 12h 24m 52s |
| 17 | Thursday | 06:14:49 | 12:26:03 | 18:37:18 | 12h 22m 29s |
| 18 | Friday | 06:15:38 | 12:25:42 | 18:35:45 | 12h 20m 7s |
| 19 | Saturday | 06:16:28 | 12:25:21 | 18:34:13 | 12h 17m 45s |
| 20 | Sunday | 06:17:18 | 12:24:59 | 18:32:40 | 12h 15m 22s |
| 21 | Monday | 06:18:08 | 12:24:38 | 18:31:07 | 12h 12m 59s |
| 22 | Tuesday | 06:18:59 | 12:24:17 | 18:29:34 | 12h 10m 35s |
| 23 | Wednesday | 06:19:49 | 12:23:55 | 18:28:02 | 12h 8m 13s |
| 24 | Thursday | 06:20:39 | 12:23:34 | 18:26:29 | 12h 5m 50s |
| 25 | Friday | 06:21:30 | 12:23:14 | 18:24:57 | 12h 3m 27s |
| 26 | Saturday | 06:22:21 | 12:22:53 | 18:23:25 | 12h 1m 4s |
| 27 | Sunday | 06:23:12 | 12:22:32 | 18:21:53 | 11h 58m 41s |
| 28 | Monday | 06:24:03 | 12:22:12 | 18:20:21 | 11h 56m 18s |
| 29 | Tuesday | 06:24:54 | 12:21:52 | 18:18:49 | 11h 53m 55s |
| 30 | Wednesday | 06:25:46 | 12:21:32 | 18:17:18 | 11h 51m 32s |