Daylight duration
We show daylight length in Heard Island Central Terrotory during September 2025 and the daylight length for the equinox and solstice for comparing. From September 1, 2025 until September 30, 2025, daylight becomes longer.
Sunrise and Sunset
Times of sunrise and sunset in Heard Island Central Terrotory during September 2025.
Taking September 1, 2025 as reference, the sun rises at 06:44:32 at 77.38°ENE (East-northeast) and sets at 17:27:54 at 195.72°S (South). Sunrise and sunset take approximately 3.63 minutes to complete. Read more about sunrise and sunset.
Taking September 15, 2025 as reference, the sun rises at 06:11:27 at 86.16°ENE (East-northeast) and sets at 17:51:31 at 188.6°S (South). Sunrise and sunset take approximately 3.55 minutes to complete. Read more about sunrise and sunset.
Solar Events
| 2025 | Daylength | Dawn | Sunset | Solar Noon | Sunrise | Dusk | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep | Length | Difference | Ast. | Nau. | Civ. | Start | Azimuth | End | Start | Azimuth | End | Civ. | Nau. | Ast. | |
| 1 | 10h 43m 22s | - | 04:49 | 05:29 | 06:09 | 06:44 | 77°ENE | 06:48 | 12:05 | 17:24 | 196°S | 17:27 | 18:02 | 18:42 | 19:23 |
| 2 | 10h 47m 21s | +4m | 04:47 | 05:27 | 06:07 | 06:42 | 78°ENE | 06:45 | 12:05 | 17:25 | 195°S | 17:29 | 18:04 | 18:44 | 19:24 |
| 3 | 10h 51m 21s | +4m | 04:45 | 05:25 | 06:05 | 06:39 | 79°ENE | 06:43 | 12:05 | 17:27 | 195°S | 17:31 | 18:06 | 18:46 | 19:26 |
| 4 | 10h 55m 22s | +4m | 04:42 | 05:23 | 06:02 | 06:37 | 79°ENE | 06:41 | 12:04 | 17:29 | 194°S | 17:32 | 18:07 | 18:47 | 19:28 |
| 5 | 10h 59m 23s | +4m | 04:40 | 05:20 | 06:00 | 06:35 | 80°ENE | 06:38 | 12:04 | 17:31 | 194°S | 17:34 | 18:09 | 18:49 | 19:29 |
| 6 | 11h 03m 25s | +4m | 04:37 | 05:18 | 05:58 | 06:32 | 80°ENE | 06:36 | 12:04 | 17:32 | 193°S | 17:36 | 18:10 | 18:50 | 19:31 |
| 7 | 11h 07m 27s | +4m | 04:35 | 05:16 | 05:56 | 06:30 | 81°ENE | 06:34 | 12:03 | 17:34 | 193°S | 17:37 | 18:12 | 18:52 | 19:33 |
| 8 | 11h 11m 31s | +4.1m | 04:33 | 05:13 | 05:53 | 06:28 | 82°ENE | 06:31 | 12:03 | 17:36 | 192°S | 17:39 | 18:14 | 18:54 | 19:35 |
| 9 | 11h 15m 34s | +4.1m | 04:30 | 05:11 | 05:51 | 06:25 | 82°ENE | 06:29 | 12:03 | 17:37 | 192°S | 17:41 | 18:15 | 18:56 | 19:36 |
| 10 | 11h 19m 38s | +4.1m | 04:28 | 05:09 | 05:48 | 06:23 | 83°ENE | 06:26 | 12:02 | 17:39 | 191°S | 17:43 | 18:17 | 18:57 | 19:38 |
| 11 | 11h 23m 43s | +4.1m | 04:25 | 05:06 | 05:46 | 06:21 | 84°ENE | 06:24 | 12:02 | 17:41 | 191°S | 17:44 | 18:19 | 18:59 | 19:40 |
| 12 | 11h 27m 48s | +4.1m | 04:23 | 05:04 | 05:44 | 06:18 | 84°ENE | 06:22 | 12:02 | 17:42 | 190°S | 17:46 | 18:20 | 19:01 | 19:42 |
| 13 | 11h 31m 53s | +4.1m | 04:20 | 05:01 | 05:41 | 06:16 | 85°ENE | 06:19 | 12:01 | 17:44 | 190°S | 17:48 | 18:22 | 19:02 | 19:44 |
| 14 | 11h 35m 59s | +4.1m | 04:18 | 04:59 | 05:39 | 06:13 | 86°ENE | 06:17 | 12:01 | 17:46 | 189°S | 17:49 | 18:24 | 19:04 | 19:46 |
| 15 | 11h 40m 04s | +4.1m | 04:15 | 04:56 | 05:37 | 06:11 | 86°ENE | 06:15 | 12:00 | 17:47 | 189°S | 17:51 | 18:25 | 19:06 | 19:47 |
| 16 | 11h 44m 11s | +4.1m | 04:12 | 04:54 | 05:34 | 06:09 | 87°ENE | 06:12 | 12:00 | 17:49 | 188°S | 17:53 | 18:27 | 19:08 | 19:49 |
| 17 | 11h 48m 18s | +4.1m | 04:10 | 04:51 | 05:32 | 06:06 | 87°ENE | 06:10 | 12:00 | 17:51 | 188°S | 17:54 | 18:29 | 19:09 | 19:51 |
| 18 | 11h 52m 25s | +4.1m | 04:07 | 04:49 | 05:29 | 06:04 | 88°ENE | 06:07 | 11:59 | 17:53 | 187°S | 17:56 | 18:31 | 19:11 | 19:53 |
| 19 | 11h 56m 33s | +4.1m | 04:04 | 04:46 | 05:27 | 06:01 | 89°ENE | 06:05 | 11:59 | 17:54 | 187°S | 17:58 | 18:32 | 19:13 | 19:55 |
| 20 | 12h 00m 40s | +4.1m | 04:02 | 04:44 | 05:24 | 05:59 | 89°ENE | 06:02 | 11:59 | 17:56 | 186°S | 18:00 | 18:34 | 19:15 | 19:57 |
| 21 | 12h 04m 48s | +4.1m | 03:59 | 04:41 | 05:22 | 05:56 | 90°ENE | 06:00 | 11:58 | 17:58 | 186°S | 18:01 | 18:36 | 19:17 | 19:59 |
| 22 | 12h 08m 56s | +4.1m | 03:56 | 04:39 | 05:20 | 05:54 | 91°ENE | 05:58 | 11:58 | 17:59 | 185°S | 18:03 | 18:38 | 19:18 | 20:01 |
| 23 | 12h 13m 05s | +4.2m | 03:54 | 04:36 | 05:17 | 05:52 | 91°ENE | 05:55 | 11:58 | 18:01 | 185°S | 18:05 | 18:39 | 19:20 | 20:03 |
| 24 | 12h 17m 14s | +4.2m | 03:51 | 04:34 | 05:15 | 05:49 | 92°ENE | 05:53 | 11:57 | 18:03 | 184°S | 18:06 | 18:41 | 19:22 | 20:06 |
| 25 | 12h 21m 23s | +4.2m | 03:48 | 04:31 | 05:12 | 05:47 | 93°ENE | 05:50 | 11:57 | 18:05 | 184°S | 18:08 | 18:43 | 19:24 | 20:08 |
| 26 | 12h 25m 32s | +4.2m | 03:45 | 04:29 | 05:10 | 05:44 | 93°ENE | 05:48 | 11:57 | 18:06 | 184°S | 18:10 | 18:45 | 19:26 | 20:10 |
| 27 | 12h 29m 41s | +4.2m | 03:42 | 04:26 | 05:07 | 05:42 | 94°ENE | 05:46 | 11:56 | 18:08 | 183°S | 18:12 | 18:46 | 19:28 | 20:12 |
| 28 | 12h 33m 51s | +4.2m | 03:39 | 04:23 | 05:05 | 05:40 | 95°ENE | 05:43 | 11:56 | 18:10 | 183°S | 18:13 | 18:48 | 19:30 | 20:14 |
| 29 | 12h 38m 00s | +4.2m | 03:37 | 04:21 | 05:02 | 05:37 | 95°ENE | 05:41 | 11:56 | 18:12 | 182°S | 18:15 | 18:50 | 19:32 | 20:16 |
| 30 | 12h 42m 10s | +4.2m | 03:34 | 04:18 | 05:00 | 05:35 | 96°ENE | 05:38 | 11:55 | 18:13 | 182°S | 18:17 | 18:52 | 19:34 | 20:19 |
