Taharah calendar guides
The vestos, the hefsek, the seven clean days and mikvah night — explained the way the calendar counts them, with every machlokes named as one.
The Taharah Calendar: A Complete Guide to Niddah, Vestos and Mikvah Night
What a taharah calendar tracks, how the Hebrew dates and onos work, and how to keep one on paper or in an app — vestos, hefsek, seven clean days and mikvah night.
7 min read
How to Calculate the Vestos: Onah Beinonis, Veses HaChodesh and Haflagah
A step-by-step guide to calculating the three vestos — the 30th day, the same Hebrew date and the interval — with worked examples and the common customs.
8 min read
Onah Beinonis: The 30th Day (and the 31st) Explained
What the onah beinonis is, how to count it, why many keep the full day and day 31 too, and when a fixed veses changes it.
5 min read
Veses HaChodesh: Keeping the Same Hebrew Date Next Month
How the veses hachodesh works, why it follows the Hebrew calendar, what happens when the month has no 30th day, and how three months make it fixed.
5 min read
Haflagah: How to Calculate the Interval Veses
The haflagah explained: how to measure the interval between periods, counting in days or onos, from the onset or the hefsek, and what happens when intervals change.
6 min read
Hefsek Taharah: When Can It Be Made and How Many Days to Wait?
When the hefsek taharah can be made, the 4- and 5-day minimum, why it is made before sunset, and what happens when a bedikah is not clean.
6 min read
Shivah Neki'im: The Seven Clean Days and Their Bedikos
How the seven clean days are counted after the hefsek, how many bedikos to make each day, which days are critical, and what to do if a bedikah is missed.
6 min read
How to Calculate Mikvah Night: A Mikvah Calendar Guide
Work out mikvah night (leil tevilah) from the onset: minimum days, hefsek, seven clean days and tzeis — plus Shabbos, Yom Tov, and nights a tevilah cannot take place.
6 min read
Veses Kavua: When a Pattern Becomes a Fixed Veses
How a veses kavua is established by three repetitions, the kinds of fixed veses, how it differs from an eino kavua, and how it is uprooted.
5 min read
Jewish Period Tracker: Why a Regular Period App Isn't Enough
What a niddah and taharah app has to do that a regular period tracker can't — Hebrew dates, onos, vestos, hefsek and mikvah night — and what to look for when you choose one.
6 min read