We show daylight length in Tokyo during 2020 and the equinoxes and solstices. From June 1, 2020 until June 21, 2020, daylight becomes longer. From June 22, 2020 until December 21, 2020, daylight becomes shorter. From December 22, 2020 until June 1, 2021, daylight becomes longer.
We show the equation of time during 2020. 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 Saturday, September 12 2020.
The day with the highest positive value is Thursday, June 4 2020.
Apparent solar time and mean solar time are of the same length on the following days of the year:
Time of sunrise, sunset, dawn and dusk in Tokyo during 2020.