Length of Days in Pretoria
We show daylight length in Pretoria during 2017 and the dates of equinoxes and solstices. From June 1, 2017 until June 21, 2017 daylight becomes shorter. From June 22, 2017 until December 21, 2017 daylight becomes longer. From December 22, 2017 until May 31, 2018 daylight becomes shorter.
Equation of Time vs Day of the Year
We show the equation of time during 2017. In the graph, the day of the year in the x axis starting from January, and the difference between mean solar time and apparent solar time in the y axis.
The day with the highest negative value is Wednesday, September 13 2017.
The day with the highest positive value is Monday, June 5 2017.
Apparent solar time and mean solar time are of the same length on the following days of the year:
- Thursday, January 12 2017 (Day 12)
- Monday, April 3 2017 (Day 93)
- Thursday, July 27 2017 (Day 208)
- Wednesday, November 15 2017 (Day 319)
Schedule of Solar Events
Time of sunrise, sunset, dawn and dusk in Pretoria during 2017.
