Daylight hours in ‘Ibrī
‘Ibrī gets 13h 33m of daylight on its longest day in June, and 10h 43m on its shortest in December — a difference of 2h 50m across the year.
How fast the days change
Around 17 March, ‘Ibrī gains or loses about 1.4 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 Asia/Muscat local time, daylight saving included.
| Month | Sunrise | Sunset | Daylight | Solar noon |
|---|---|---|---|---|
| January | 06:57 | 17:49 | 10h 52m | 12:23 |
| February | 06:46 | 18:09 | 11h 23m | 12:28 |
| March | 06:22 | 18:22 | 12h 00m | 12:22 |
| April | 05:53 | 18:34 | 12h 41m | 12:14 |
| May | 05:32 | 18:47 | 13h 15m | 12:10 |
| June | 05:27 | 19:01 | 13h 33m | 12:14 |
| July | 05:37 | 19:02 | 13h 26m | 12:19 |
| August | 05:50 | 18:46 | 12h 57m | 12:18 |
| September | 06:00 | 18:17 | 12h 17m | 12:09 |
| October | 06:10 | 17:48 | 11h 38m | 11:59 |
| November | 06:27 | 17:29 | 11h 02m | 11:58 |
| December | 06:47 | 17:30 | 10h 43m | 12:09 |
Solstices and equinoxes
| Date | Sunrise | Sunset | Daylight | |
|---|---|---|---|---|
| March equinox | 20 Mar | 06:17 | 18:24 | 12h 07m |
| June solstice | 21 Jun | 05:28 | 19:02 | 13h 34m |
| September equinox | 22 Sep | 06:02 | 18:10 | 12h 08m |
| December solstice | 21 Dec | 06:50 | 17:33 | 10h 42m |
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 Oman
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.