Grand Prismatic Spring Sunrise & Sunset Calendar for September 2026
| Date | Day | Civil Dawn | Sunrise (Direction) | Sunset (Direction) | Civil Dusk | Solar Noon | Day Length | Noon Altitude |
|---|---|---|---|---|---|---|---|---|
| 01 | Tue | 06:16 | 06:46 (ENE) | 20:01 (WNW) | 20:30 | 13:23 | 13h 15m | 53.5° |
| 02 | Wed | 06:17 | 06:47 (ENE) | 19:59 (WNW) | 20:28 | 13:22 | 13h 12m | 53.2° |
| 03 | Thu | 06:18 | 06:48 (E) | 19:57 (W) | 20:26 | 13:22 | 13h 9m | 52.8° |
| 04 | Fri | 06:20 | 06:49 (E) | 19:55 (W) | 20:24 | 13:22 | 13h 6m | 52.4° |
| 05 | Sat | 06:21 | 06:50 (E) | 19:54 (W) | 20:22 | 13:21 | 13h 3m | 52.1° |
| 06 | Sun | 06:22 | 06:51 (E) | 19:52 (W) | 20:20 | 13:21 | 13h 0m | 51.7° |
| 07 | Mon | 06:23 | 06:53 (E) | 19:50 (W) | 20:18 | 13:21 | 12h 57m | 51.3° |
| 08 | Tue | 06:24 | 06:54 (E) | 19:48 (W) | 20:16 | 13:20 | 12h 54m | 50.9° |
| 09 | Wed | 06:26 | 06:55 (E) | 19:46 (W) | 20:14 | 13:20 | 12h 51m | 50.6° |
| 10 | Thu | 06:27 | 06:56 (E) | 19:44 (W) | 20:13 | 13:20 | 12h 48m | 50.2° |
| 11 | Fri | 06:28 | 06:57 (E) | 19:43 (W) | 20:11 | 13:19 | 12h 45m | 49.8° |
| 12 | Sat | 06:29 | 06:58 (E) | 19:41 (W) | 20:09 | 13:19 | 12h 42m | 49.4° |
| 13 | Sun | 06:31 | 07:00 (E) | 19:39 (W) | 20:07 | 13:19 | 12h 39m | 49° |
| 14 | Mon | 06:32 | 07:01 (E) | 19:37 (W) | 20:05 | 13:18 | 12h 36m | 48.7° |
| 15 | Tue | 06:33 | 07:02 (E) | 19:35 (W) | 20:03 | 13:18 | 12h 33m | 48.3° |
| 16 | Wed | 06:34 | 07:03 (E) | 19:33 (W) | 20:01 | 13:18 | 12h 30m | 47.9° |
| 17 | Thu | 06:35 | 07:04 (E) | 19:31 (W) | 19:59 | 13:17 | 12h 26m | 47.5° |
| 18 | Fri | 06:37 | 07:05 (E) | 19:29 (W) | 19:57 | 13:17 | 12h 23m | 47.1° |
| 19 | Sat | 06:38 | 07:07 (E) | 19:28 (W) | 19:55 | 13:17 | 12h 20m | 46.7° |
| 20 | Sun | 06:39 | 07:08 (E) | 19:26 (W) | 19:53 | 13:16 | 12h 17m | 46.3° |
| 21 | Mon | 06:40 | 07:09 (E) | 19:24 (W) | 19:51 | 13:16 | 12h 14m | 46° |
| 22 | Tue | 06:41 | 07:10 (E) | 19:22 (W) | 19:50 | 13:15 | 12h 11m | 45.6° |
| 23 | Wed | 06:43 | 07:11 (E) | 19:20 (W) | 19:48 | 13:15 | 12h 8m | 45.2° |
| 24 | Thu | 06:44 | 07:13 (E) | 19:18 (W) | 19:46 | 13:15 | 12h 5m | 44.8° |
| 25 | Fri | 06:45 | 07:14 (E) | 19:16 (W) | 19:44 | 13:14 | 12h 2m | 44.4° |
| 26 | Sat | 06:46 | 07:15 (E) | 19:14 (W) | 19:42 | 13:14 | 11h 59m | 44° |
| 27 | Sun | 06:47 | 07:16 (E) | 19:12 (W) | 19:40 | 13:14 | 11h 56m | 43.6° |
| 28 | Mon | 06:49 | 07:17 (E) | 19:11 (W) | 19:38 | 13:13 | 11h 53m | 43.2° |
| 29 | Tue | 06:50 | 07:19 (E) | 19:09 (W) | 19:36 | 13:13 | 11h 50m | 42.8° |
| 30 | Wed | 06:51 | 07:20 (E) | 19:07 (W) | 19:35 | 13:13 | 11h 47m | 42.5° |