Length of Days in Vostok
We show daylight length in Vostok during 2021 and the equinoxes and solstices. From June 1, 2021 until August 20, 2021, daylight does not vary. From August 21, 2021 until October 19, 2021, daylight becomes longer. From October 20, 2021 until February 21, 2022, daylight does not vary. From February 22, 2022 until April 23, 2022, daylight becomes shorter. From April 24, 2022 until May 31, 2022, daylight does not vary.
Equation of Time vs Day of the Year
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:
- Tuesday, January 12 2021 (Day 12)
- Saturday, April 3 2021 (Day 93)
- Tuesday, July 27 2021 (Day 208)
- Monday, November 15 2021 (Day 319)
Schedule of Solar Events
Time of sunrise, sunset, dawn and dusk in Vostok during 2021.
- From April 7, 2021 until November 7, 2021, astronomical Dawn does not occur.
- From April 7, 2021 until November 7, 2021, night does not occur.
- From April 8, 2021 until November 6, 2021, night does not occur.
- From April 8, 2021 until November 6, 2021, astronomical Dusk does not occur.
- From April 23, 2021 until October 23, 2021, nautical Dawn does not occur.
- From April 23, 2021 until October 21, 2021, nautical Dusk does not occur.
- From January 1, 2021 until March 4, 2021, civil Dusk does not occur.
- From January 1, 2021 until March 4, 2021, civil Dawn does not occur.
