Azerbaijan National Academy of Sciences

According to the Shamakhi Astrophysical Observatory of ANAS, summer season, entered and will be followed by the autumn on September 23 at 00:02. On the same day there will be equality of day and night. Starting from September 23, nights are going to become longer, days shorter.

Lengthening of nights will run until December 21 and will be the longest night on the same day.

This year, the arrival of winter will occur on December 21 at 20:28.

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