Daylight hours in Honiara
Honiara gets 12h 40m of daylight on its longest day in December, and 11h 35m on its shortest in June — a difference of 1h 06m across the year.
How fast the days change
Around 12 March, Honiara gains or loses about 0.5 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 Pacific/Guadalcanal local time, daylight saving included.
| Month | Sunrise | Sunset | Daylight | Solar noon |
|---|---|---|---|---|
| January | 06:11 | 18:47 | 12h 37m | 12:29 |
| February | 06:22 | 18:46 | 12h 24m | 12:34 |
| March | 06:24 | 18:34 | 12h 10m | 12:29 |
| April | 06:23 | 18:17 | 11h 54m | 12:20 |
| May | 06:25 | 18:07 | 11h 41m | 12:16 |
| June | 06:33 | 18:07 | 11h 35m | 12:20 |
| July | 06:37 | 18:14 | 11h 37m | 12:26 |
| August | 06:30 | 18:18 | 11h 48m | 12:24 |
| September | 06:14 | 18:16 | 12h 03m | 12:15 |
| October | 05:56 | 18:15 | 12h 18m | 12:06 |
| November | 05:48 | 18:20 | 12h 33m | 12:04 |
| December | 05:55 | 18:35 | 12h 40m | 12:15 |
Solstices and equinoxes
| Date | Sunrise | Sunset | Daylight | |
|---|---|---|---|---|
| March equinox | 20 Mar | 06:24 | 18:31 | 12h 07m |
| June solstice | 21 Jun | 06:34 | 18:09 | 11h 34m |
| September equinox | 22 Sep | 06:09 | 18:16 | 12h 06m |
| December solstice | 21 Dec | 05:57 | 18:38 | 12h 40m |
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.
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.