Daylight hours in Hervey Bay
Hervey Bay gets 13h 42m of daylight on its longest day in December, and 10h 34m on its shortest in June — a difference of 3h 08m across the year.
How fast the days change
Around 17 March, Hervey Bay gains or loses about 1.5 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 Australia/Brisbane local time, daylight saving included.
| Month | Sunrise | Sunset | Daylight | Solar noon |
|---|---|---|---|---|
| January | 05:12 | 18:44 | 13h 32m | 11:58 |
| February | 05:34 | 18:31 | 12h 57m | 12:03 |
| March | 05:50 | 18:05 | 12h 16m | 11:57 |
| April | 06:03 | 17:34 | 11h 30m | 11:49 |
| May | 06:18 | 17:12 | 10h 54m | 11:45 |
| June | 06:32 | 17:06 | 10h 34m | 11:49 |
| July | 06:33 | 17:15 | 10h 42m | 11:54 |
| August | 06:16 | 17:30 | 11h 13m | 11:53 |
| September | 05:46 | 17:42 | 11h 56m | 11:44 |
| October | 05:14 | 17:54 | 12h 40m | 11:34 |
| November | 04:53 | 18:13 | 13h 20m | 11:33 |
| December | 04:52 | 18:34 | 13h 42m | 11:43 |
Solstices and equinoxes
| Date | Sunrise | Sunset | Daylight | |
|---|---|---|---|---|
| March equinox | 20 Mar | 05:52 | 18:00 | 12h 08m |
| June solstice | 21 Jun | 06:33 | 17:07 | 10h 34m |
| September equinox | 22 Sep | 05:38 | 17:44 | 12h 06m |
| December solstice | 21 Dec | 04:55 | 18:38 | 13h 43m |
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 Australia
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.