Length of Days in Vostok
We show daylight length in Vostok during 2018 and the dates of equinoxes and solstices. From June 1, 2018 until August 20, 2018 daylight does not vary. From August 21, 2018 until October 19, 2018 daylight becomes longer. From October 20, 2018 until February 22, 2019 daylight does not vary. From February 23, 2019 until April 23, 2019 daylight becomes shorter. From April 24, 2019 until May 31, 2019 daylight does not vary.
Equation of Time vs Day of the Year
We show the equation of time during 2018. 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 Friday, September 14 2018.
The day with the highest positive value is Tuesday, June 5 2018.
Apparent solar time and mean solar time are of the same length on the following days of the year:
- Saturday, January 13 2018 (Day 13)
- Wednesday, April 4 2018 (Day 94)
- Saturday, July 28 2018 (Day 209)
- Friday, November 16 2018 (Day 320)
Schedule of Solar Events
Time of sunrise, sunset, dawn and dusk in Vostok during 2018.
- From April 8, 2018 until November 8, 2018, astronomical Dawn does not occur.
- From April 8, 2018 until November 8, 2018, night does not occur.
- From April 8, 2018 until November 6, 2018, night does not occur.
- From April 8, 2018 until November 6, 2018, astronomical Dusk does not occur.
- From April 23, 2018 until October 23, 2018, nautical Dawn does not occur.
- From April 24, 2018 until October 22, 2018, nautical Dusk does not occur.
- From January 1, 2018 until March 5, 2018, civil Dusk does not occur.
- From January 1, 2018 until March 5, 2018, civil Dawn does not occur.
