We show daylight length in Buenos Aires during 2021 and the equinoxes and solstices. From June 1, 2021 until June 20, 2021, daylight becomes shorter. From June 21, 2021 until December 21, 2021, daylight becomes longer. From December 22, 2021 until May 31, 2022, daylight becomes shorter.
We show the equation of time during 2021. 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 Monday, September 13 2021.
The day with the highest positive value is Saturday, June 5 2021.
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 Buenos Aires during 2021.