Sunrise and Sunsetat Biosphere 2
Today
Saturday, 13 September 2025
Sunrise
8:06 AM
Sunset
8:32 PM
On 13 September, the sun rises at 8:06 AM and sets at 8:32 PM.
The sun is 12 hours 25 minutes above the horizon (the length of the day).
Astronomical dawn (first rays of light) begins at 6:43 AM and at 9:54 PM it is completely dark (the end of astronomical twilight).
The sun is 12 hours 25 minutes above the horizon (the length of the day).
Astronomical dawn (first rays of light) begins at 6:43 AM and at 9:54 PM it is completely dark (the end of astronomical twilight).
| Date | Sunrise | Sunset | Day length |
|---|---|---|---|
| 1 September 2025, Monday | 7:58 AM | 8:47 PM | 12h 49m |
| 2 September 2025, Tuesday | 7:59 AM | 8:46 PM | 12h 47m |
| 3 September 2025, Wednesday | 7:59 AM | 8:45 PM | 12h 45m |
| 4 September 2025, Thursday | 8:00 AM | 8:43 PM | 12h 43m |
| 5 September 2025, Friday | 8:01 AM | 8:42 PM | 12h 41m |
| 6 September 2025, Saturday | 8:01 AM | 8:41 PM | 12h 39m |
| 7 September 2025, Sunday | 8:02 AM | 8:40 PM | 12h 37m |
| 8 September 2025, Monday | 8:03 AM | 8:38 PM | 12h 35m |
| 9 September 2025, Tuesday | 8:03 AM | 8:37 PM | 12h 33m |
| 10 September 2025, Wednesday | 8:04 AM | 8:36 PM | 12h 31m |
| 11 September 2025, Thursday | 8:04 AM | 8:34 PM | 12h 29m |
| 12 September 2025, Friday | 8:05 AM | 8:33 PM | 12h 27m |
| 13 September 2025, Saturday | 8:06 AM | 8:32 PM | 12h 25m |
| 14 September 2025, Sunday | 8:06 AM | 8:30 PM | 12h 23m |
| 15 September 2025, Monday | 8:07 AM | 8:29 PM | 12h 21m |
| 16 September 2025, Tuesday | 8:08 AM | 8:27 PM | 12h 19m |
| 17 September 2025, Wednesday | 8:08 AM | 8:26 PM | 12h 17m |
| 18 September 2025, Thursday | 8:09 AM | 8:25 PM | 12h 15m |
| 19 September 2025, Friday | 8:10 AM | 8:23 PM | 12h 13m |
| 20 September 2025, Saturday | 8:10 AM | 8:22 PM | 12h 11m |
| 21 September 2025, Sunday | 8:11 AM | 8:21 PM | 12h 09m |
| 22 September 2025, Monday | 8:11 AM | 8:19 PM | 12h 07m |
| 23 September 2025, Tuesday | 8:12 AM | 8:18 PM | 12h 05m |
| 24 September 2025, Wednesday | 8:13 AM | 8:17 PM | 12h 03m |
| 25 September 2025, Thursday | 8:13 AM | 8:15 PM | 12h 02m |
| 26 September 2025, Friday | 8:14 AM | 8:14 PM | 12h 00m |
| 27 September 2025, Saturday | 8:15 AM | 8:13 PM | 11h 58m |
| 28 September 2025, Sunday | 8:15 AM | 8:11 PM | 11h 56m |
| 29 September 2025, Monday | 8:16 AM | 8:10 PM | 11h 54m |
| 30 September 2025, Tuesday | 8:17 AM | 8:09 PM | 11h 52m |