Daylight hours in Dunedin
Dunedin gets 15h 42m of daylight on its longest day in December, and 8h 41m on its shortest in June — a difference of 7h 01m across the year.
How fast the days change
Around 6 April, Dunedin gains or loses about 3.3 minutes of daylight every day.
Enough to notice over a fortnight, though the seasons arrive more gently here than further from the equator.
Sunrise and sunset by month
On the 15th of each month, in Pacific/Auckland local time, daylight saving included.
| Month | Sunrise | Sunset | Daylight | Solar noon |
|---|---|---|---|---|
| January | 06:07 | 21:26 | 15h 19m | 13:47 |
| February | 06:53 | 20:51 | 13h 58m | 13:52 |
| March | 07:33 | 20:01 | 12h 28m | 13:47 |
| April | 07:13 | 18:02 | 10h 49m | 12:38 |
| May | 07:51 | 17:17 | 9h 26m | 12:34 |
| June | 08:18 | 16:58 | 8h 41m | 12:38 |
| July | 08:14 | 17:13 | 8h 59m | 12:43 |
| August | 07:37 | 17:47 | 10h 10m | 12:42 |
| September | 06:41 | 18:25 | 11h 44m | 12:33 |
| October | 06:43 | 20:03 | 13h 20m | 13:23 |
| November | 05:56 | 20:48 | 14h 51m | 13:22 |
| December | 05:41 | 21:23 | 15h 42m | 13:32 |
Solstices and equinoxes
| Date | Sunrise | Sunset | Daylight | |
|---|---|---|---|---|
| March equinox | 20 Mar | 07:39 | 19:51 | 12h 12m |
| June solstice | 21 Jun | 08:20 | 16:59 | 8h 39m |
| September equinox | 22 Sep | 06:27 | 18:34 | 12h 06m |
| December solstice | 21 Dec | 05:43 | 21:27 | 15h 44m |
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 New Zealand
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.