SKYWATCHING
Observing session duration
Count the hours between two local clock times. This is a planning worksheet, not a visibility forecast. Check your location, horizon and weather separately.
Observing session duration
Count the hours between two local clock times. This is a planning worksheet, not a visibility forecast. Check your location, horizon and weather separately.
End − start; add 24 for an overnight session. Equal times mean zero hours. Assumes no clock change.
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