Dark Sky Times

Calculate the times when the Sun is at least -18 degrees below the horizon and there is no moon present in the sky.

Please note:

    It is important to select the time zone that you want the results to be displayed in.
    If you do not select a time zone, it will default to UTC.
    When a time zone is selected, daylight saving time rules will automatically be applied to the results.

Date Start:
Date End:
Latitude:
Longitude:
(display results in) Time Zone:
Elevation (m):
The observer's elevation above mean sea level, espressed in meters.
Set to 0 if you don't know.

Dark Times

The times are in the selected time zone. Please note that if the "Dark Time End (Dusk)" is 23:59:59, and the next day's "Dark Time Start (Dawn)" is 00:00:00, then the dark time window extends into the next day.

Date Dark Time Start (Dawn) Dark Time End (Dawn) Dark Time Start (Dusk) Dark Time End (Dusk)