howmuchsun

Daylight hours in Sydney

Sydney gets 15h 45m of daylight on its longest day in June, and 8h 39m on its shortest in December — a difference of 7h 06m across the year.

How fast the days change

Around 17 March, Sydney 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 America/Glace_Bay local time, daylight saving included.

Sunrise, sunset and day length by month.
MonthSunriseSunsetDaylightSolar noon
January 07:38 16:41 9h 02m 12:10
February 07:03 17:26 10h 23m 12:14
March 07:12 19:06 11h 53m 13:09
April 06:13 19:47 13h 34m 13:00
May 05:27 20:26 14h 59m 12:57
June 05:08 20:53 15h 45m 13:01
July 05:24 20:48 15h 24m 13:06
August 06:00 20:10 14h 10m 13:05
September 06:39 19:12 12h 33m 12:55
October 07:18 18:14 10h 57m 12:46
November 07:01 16:28 9h 27m 11:45
December 07:36 16:15 8h 39m 11:55

Solstices and equinoxes

DateSunriseSunsetDaylight
March equinox 20 Mar 07:03 19:12 12h 10m
June solstice 21 Jun 05:09 20:55 15h 46m
September equinox 22 Sep 06:48 18:58 12h 11m
December solstice 21 Dec 07:40 16:17 8h 37m

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 Canada

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.

Full methodology, sources and known limitations