Daylight hours in Zanzibar
Zanzibar gets 12h 29m of daylight on its longest day in December, and 11h 46m on its shortest in June — a difference of 0h 43m across the year.
How fast the days change
Around 12 March, Zanzibar gains or loses about 0.3 minutes of daylight every day.
Barely perceptible — near the equator the length of the day hardly changes at all, and the seasons announce themselves through rain and heat instead.
Sunrise and sunset by month
On the 15th of each month, in Africa/Dar_es_Salaam local time, daylight saving included.
| Month | Sunrise | Sunset | Daylight | Solar noon |
|---|---|---|---|---|
| January | 06:19 | 18:45 | 12h 26m | 12:32 |
| February | 06:28 | 18:46 | 12h 18m | 12:37 |
| March | 06:27 | 18:36 | 12h 08m | 12:32 |
| April | 06:24 | 18:22 | 11h 58m | 12:23 |
| May | 06:24 | 18:14 | 11h 50m | 12:19 |
| June | 06:30 | 18:16 | 11h 46m | 12:23 |
| July | 06:35 | 18:23 | 11h 48m | 12:29 |
| August | 06:30 | 18:25 | 11h 55m | 12:27 |
| September | 06:16 | 18:20 | 12h 04m | 12:18 |
| October | 06:01 | 18:16 | 12h 14m | 12:08 |
| November | 05:55 | 18:19 | 12h 24m | 12:07 |
| December | 06:03 | 18:32 | 12h 29m | 12:18 |
Solstices and equinoxes
| Date | Sunrise | Sunset | Daylight | |
|---|---|---|---|---|
| March equinox | 20 Mar | 06:27 | 18:34 | 12h 07m |
| June solstice | 21 Jun | 06:32 | 18:17 | 11h 46m |
| September equinox | 22 Sep | 06:12 | 18:19 | 12h 06m |
| December solstice | 21 Dec | 06:06 | 18:35 | 12h 29m |
The equinoxes give almost exactly twelve hours of daylight everywhere on earth — "almost" because sunrise is defined by the sun's upper edge rather than its centre, and the atmosphere bends its light over the horizon before it has really arrived. Both lengthen the day by a few minutes.
Other cities in Tanzania
Assumptions
- Sea-level horizon. Hills, mountains and buildings all delay sunrise and bring sunset forward, sometimes by a lot in a valley.
- Standard refraction. Sunrise is taken at −0.833°, allowing for the sun's disc and average atmospheric bending. Unusual air conditions shift it by a minute or two.
- Local clock time, with daylight saving applied from the IANA timezone database.