Became niddah four minutes after shekiah
2 January, 2017
I felt cramping today and noticed some spotting, but I only knew I was a niddah for sure at 5:27 pm on Monday evening. I realize now that shkiah in my area is 5:23 pm. Does this mean my first day is Tuesday even though I missed shkiah by 4 minutes?
If you were uncertain of your niddah status prior to shekiah, then you may count the earlier day. If you were confident you were not in niddah until 5:27, then Monday should not count. (In extenuating circumstances, there may be room for leniency. Please write back with details if you think this might be your situation.)
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