Which minhag do you follow?

Do you keep the Or Zarua?

(Or Zarua is the onah just before the veset, kept as an extra precaution.)

When did your last period begin?

Choose the date first.

When did the period before that begin?

This is used for the Haflaga (the interval). Skip it if you don't know.

This date must be before your last period.

Where do you live?

This sets the sunset and sunrise times in your calendar. Without it, the onot are added as all-day reminders.

Your onot

The .ics file opens in Apple Calendar and Outlook, and imports into Google Calendar. Each onah also has its own Google Calendar button.

This tool does not detect a veset kavua (a fixed pattern) or cover pregnancy, nursing or other special cases. Please confirm the rules with your rav.

Contact us

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