Kotka — sunrise and sunset times

Calculate the sunrise and sunset times in Kotka, and the day length for any given day of the year.

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Kotka — sunrise, sunset, length of day 03/08/2025
Sunrise	04:55:35
Sunset	21:41:14
Day length	16:45:39
Sun at its zenith	13:18:24
Civil dawn	03:55:23
Civil Twilight	22:41:25
Nautical dawn	01:43:06
Nautical Twilight	00:53:42