How do you calculate the start of a new month? (poll 11896363)

How do you calculate the start of a new month?

With the sighting of the first sliver after the new moon

When the Hellel II calendar says it's a new month

By looking at the calendar on the wall (Gregorian)

When the last sliver of the waning crescent is no longer visible

What are you talking about?

Other:

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