Length of Days in Vostok
We show daylight length in Vostok during 2020 and the equinoxes and solstices. From June 1, 2020 until August 19, 2020, daylight does not vary. From August 20, 2020 until October 19, 2020, daylight becomes longer. From October 20, 2020 until February 21, 2021, daylight does not vary. From February 22, 2021 until April 23, 2021, daylight becomes shorter. From April 24, 2021 until June 1, 2021, daylight does not vary.
Equation of Time vs Day of the Year
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:
- Sunday, January 12 2020 (Day 12)
- Thursday, April 2 2020 (Day 93)
- Sunday, July 26 2020 (Day 208)
- Saturday, November 14 2020 (Day 319)
Schedule of Solar Events
Time of sunrise, sunset, dawn and dusk in Vostok during 2020.
- From April 6, 2020 until November 6, 2020, astronomical Dawn does not occur.
- From April 6, 2020 until November 6, 2020, night does not occur.
- From April 7, 2020 until November 5, 2020, night does not occur.
- From April 7, 2020 until November 5, 2020, astronomical Dusk does not occur.
- From April 22, 2020 until October 21, 2020, nautical Dawn does not occur.
- From April 22, 2020 until October 20, 2020, nautical Dusk does not occur.
- From January 1, 2020 until March 3, 2020, civil Dusk does not occur.
- From January 1, 2020 until March 3, 2020, civil Dawn does not occur.
