Daylight hours in Kaohsiung
Kaohsiung gets 13h 31m of daylight on its longest day in June, and 10h 45m on its shortest in December — a difference of 2h 45m across the year.
How fast the days change
Around 17 March, Kaohsiung gains or loses about 1.3 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 Asia/Taipei local time, daylight saving included.
| Month | Sunrise | Sunset | Daylight | Solar noon |
|---|---|---|---|---|
| January | 06:41 | 17:34 | 10h 54m | 12:08 |
| February | 06:30 | 17:55 | 11h 24m | 12:12 |
| March | 06:07 | 18:07 | 12h 00m | 12:07 |
| April | 05:38 | 18:18 | 12h 40m | 11:58 |
| May | 05:18 | 18:31 | 13h 13m | 11:55 |
| June | 05:13 | 18:44 | 13h 31m | 11:59 |
| July | 05:22 | 18:46 | 13h 24m | 12:04 |
| August | 05:35 | 18:31 | 12h 55m | 12:03 |
| September | 05:45 | 18:02 | 12h 17m | 11:54 |
| October | 05:55 | 17:33 | 11h 39m | 11:44 |
| November | 06:11 | 17:15 | 11h 04m | 11:43 |
| December | 06:31 | 17:16 | 10h 45m | 11:53 |
Solstices and equinoxes
| Date | Sunrise | Sunset | Daylight | |
|---|---|---|---|---|
| March equinox | 20 Mar | 06:02 | 18:09 | 12h 07m |
| June solstice | 21 Jun | 05:14 | 18:46 | 13h 31m |
| September equinox | 22 Sep | 05:47 | 17:55 | 12h 08m |
| December solstice | 21 Dec | 06:34 | 17:19 | 10h 45m |
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 Taiwan
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.