sun .5deg.comSunrise, Sunset, Solar noon and Sun position here: Seongnam-si, South Korea (Gyeonggi-do), for period: December 2026. Longest day in month: December 2026: 9 hours, 47 minutes, 8 seconds (2026-12-01). Shortest day in this month: 9 hours, 34 minutes , 51 seconds (2026-12-22).
:December 2026, Solar noon=>Altitude: maximal 30.84° (2026-12-01, 12:20:20). minimal: 29.12° (2026-12-22, 12:29:50)
Table view of above data:
| date | Day | Sunrise | Solar noon | Sunset | Day Length |
| 01 | Tuesday | 07:26:46 | 12:20:20 | 17:13:54 | 9h 47m 8s |
| 02 | Wednesday | 07:27:42 | 12:20:42 | 17:13:43 | 9h 46m 1s |
| 03 | Thursday | 07:28:37 | 12:21:05 | 17:13:34 | 9h 44m 57s |
| 04 | Friday | 07:29:32 | 12:21:29 | 17:13:27 | 9h 43m 55s |
| 05 | Saturday | 07:30:25 | 12:21:54 | 17:13:22 | 9h 42m 57s |
| 06 | Sunday | 07:31:18 | 12:22:19 | 17:13:19 | 9h 42m 1s |
| 07 | Monday | 07:32:09 | 12:22:44 | 17:13:19 | 9h 41m 10s |
| 08 | Tuesday | 07:33:00 | 12:23:10 | 17:13:20 | 9h 40m 20s |
| 09 | Wednesday | 07:33:49 | 12:23:36 | 17:13:24 | 9h 39m 35s |
| 10 | Thursday | 07:34:37 | 12:24:03 | 17:13:29 | 9h 38m 52s |
| 11 | Friday | 07:35:24 | 12:24:31 | 17:13:37 | 9h 38m 13s |
| 12 | Saturday | 07:36:10 | 12:24:58 | 17:13:47 | 9h 37m 37s |
| 13 | Sunday | 07:36:54 | 12:25:26 | 17:13:59 | 9h 37m 5s |
| 14 | Monday | 07:37:37 | 12:25:55 | 17:14:13 | 9h 36m 36s |
| 15 | Tuesday | 07:38:18 | 12:26:23 | 17:14:29 | 9h 36m 11s |
| 16 | Wednesday | 07:38:58 | 12:26:52 | 17:14:47 | 9h 35m 49s |
| 17 | Thursday | 07:39:36 | 12:27:22 | 17:15:07 | 9h 35m 31s |
| 18 | Friday | 07:40:13 | 12:27:51 | 17:15:28 | 9h 35m 15s |
| 19 | Saturday | 07:40:49 | 12:28:20 | 17:15:52 | 9h 35m 3s |
| 20 | Sunday | 07:41:22 | 12:28:50 | 17:16:18 | 9h 34m 56s |
| 21 | Monday | 07:41:54 | 12:29:20 | 17:16:46 | 9h 34m 52s |
| 22 | Tuesday | 07:42:24 | 12:29:50 | 17:17:15 | 9h 34m 51s |
| 23 | Wednesday | 07:42:53 | 12:30:20 | 17:17:46 | 9h 34m 53s |
| 24 | Thursday | 07:43:19 | 12:30:49 | 17:18:19 | 9h 35m 0s |
| 25 | Friday | 07:43:44 | 12:31:19 | 17:18:54 | 9h 35m 10s |
| 26 | Saturday | 07:44:07 | 12:31:49 | 17:19:30 | 9h 35m 23s |
| 27 | Sunday | 07:44:28 | 12:32:18 | 17:20:09 | 9h 35m 41s |
| 28 | Monday | 07:44:47 | 12:32:48 | 17:20:48 | 9h 36m 1s |
| 29 | Tuesday | 07:45:05 | 12:33:17 | 17:21:30 | 9h 36m 25s |
| 30 | Wednesday | 07:45:20 | 12:33:46 | 17:22:12 | 9h 36m 52s |
| 31 | Thursday | 07:45:33 | 12:34:15 | 17:22:57 | 9h 37m 24s |