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Weather

Sunrise & Sunset by Calendar Month

Sunrise and Sunset - February 2012

Saturday Sunday Monday Tuesday Wednesday Thursday Friday
       
1
08:10 17:05
2
08:09 17:07
3
08:07 17:09
4
08:05 17:11
5
08:04 17:13
6
08:02 17:15
7
08:00 17:17
8
07:58 17:19
9
07:56 17:21
10
07:54 17:23
11
07:52 17:25
12
07:51 17:27
13
07:49 17:29
14
07:47 17:31
15
07:45 17:33
16
07:43 17:35
17
07:41 17:36
18
07:38 17:38
19
07:36 17:40
20
07:34 17:42
21
07:32 17:44
22
07:30 17:46
23
07:28 17:48
24
07:26 17:50
25
07:23 17:52
26
07:21 17:54
27
07:19 17:56
28
07:17 17:58
29
07:14 18:00
    

Note: Times are based upon Greenwich Mean Time (GMT)

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Twilight is caused by the scattering of sunlight by the upper layers of the Earth's atmosphere. There are different definitions of twilight.

Astronomical twilight begins at sunset (ends at sunrise) and ends (begins) when the Sun's center is 18 degrees below the horizon.

Civil twilight begins (ends) when the Sun's center is 6 degrees below the horizon.

Nautical twilight begins (ends) when the Sun's center is 12 degrees below the horizon.

The definitions for sunrise, sunset, and twilight for an observer at sea level are given in terms of the zenith distance of the center of the Sun:

  • Sunrise and Sunset 90 deg 50 arc min.
  • Civil Twilight 96°
  • Nautical Twilight 102°
  • Astronomical Twilight 108°