Daylight hours in Pago Pago
Pago Pago gets 12h 58m of daylight on its longest day in December, and 11h 17m on its shortest in June — a difference of 1h 41m across the year.
How fast the days change
Around 12 March, Pago Pago gains or loses about 0.8 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/Pago_Pago local time, daylight saving included.
| Month | Sunrise | Sunset | Daylight | Solar noon |
|---|---|---|---|---|
| January | 06:06 | 18:58 | 12h 52m | 12:32 |
| February | 06:20 | 18:53 | 12h 33m | 12:36 |
| March | 06:26 | 18:36 | 12h 11m | 12:31 |
| April | 06:29 | 18:15 | 11h 46m | 12:22 |
| May | 06:35 | 18:02 | 11h 27m | 12:19 |
| June | 06:44 | 18:01 | 11h 17m | 12:23 |
| July | 06:48 | 18:09 | 11h 22m | 12:28 |
| August | 06:38 | 18:16 | 11h 38m | 12:27 |
| September | 06:17 | 18:18 | 12h 01m | 12:17 |
| October | 05:55 | 18:20 | 12h 25m | 12:08 |
| November | 05:44 | 18:30 | 12h 47m | 12:07 |
| December | 05:49 | 18:47 | 12h 58m | 12:18 |
Solstices and equinoxes
| Date | Sunrise | Sunset | Daylight | |
|---|---|---|---|---|
| March equinox | 20 Mar | 06:26 | 18:33 | 12h 07m |
| June solstice | 21 Jun | 06:46 | 18:03 | 11h 17m |
| September equinox | 22 Sep | 06:11 | 18:18 | 12h 07m |
| December solstice | 21 Dec | 05:52 | 18:50 | 12h 58m |
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.