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SAPIR 861 · CALENDAR DATA · 1800–2100

10 (י׳) Av: one Hebrew date across 301 years

EN RU עברית ES PT

A Hebrew date does not wander freely through the week. This page shows every time 10 (י׳) Av occurred between 1800 and 2100 — 301 times — and what the fixed calendar allows and forbids for it. Nothing here is a prediction; it is a count over the whole range.

Weekdays this date can fall on

Possiblen%
Sunday8528.2%
Monday3411.3%
Wednesday9531.6%
Friday8728.9%
Never — not once in 301 years: Tuesday, Thursday, Saturday

Measured across all 385 Hebrew dates and 301 years (109,938 observations): not a single Hebrew date can fall on all seven weekdays. 267 of 385 are limited to four. This follows from the rules of the fixed calendar, but we have not seen it published as a measurement.

The portion read that week

This date is locked

Your Hebrew birthday falls in the week of Vaetchanan every single year from 1800 to 2100 — 301 times out of 301. Only 30 of the 385 Hebrew dates behave this way, and all of them sit close to Tishrei.

Portionn%
Vaetchanan ואתחנן301100%

Year by year

Showing the most recent 40 of 301.

Hebrew yearGregorianWeekdayPortion
58602100-08-15SundayVaetchanan
58592099-07-27MondayVaetchanan
58582098-08-08FridayVaetchanan
58572097-07-19FridayVaetchanan
58562096-07-29SundayVaetchanan
58552095-08-10WednesdayVaetchanan
58542094-07-23FridayVaetchanan
58532093-08-02SundayVaetchanan
58522092-08-13WednesdayVaetchanan
58512091-07-25WednesdayVaetchanan
58502090-08-06SundayVaetchanan
58492089-07-17SundayVaetchanan
58482088-07-28WednesdayVaetchanan
58472087-08-08FridayVaetchanan
58462086-07-21SundayVaetchanan
58452085-08-01WednesdayVaetchanan
58442084-08-11FridayVaetchanan
58432083-07-25SundayVaetchanan
58422082-08-05WednesdayVaetchanan
58412081-08-15FridayVaetchanan
58402080-07-26FridayVaetchanan
58392079-08-07MondayVaetchanan
58382078-07-20WednesdayVaetchanan
58372077-07-30FridayVaetchanan
58362076-08-09SundayVaetchanan
58352075-07-22MondayVaetchanan
58342074-08-03FridayVaetchanan
58332073-08-13SundayVaetchanan
58322072-07-25MondayVaetchanan
58312071-08-05WednesdayVaetchanan
58302070-07-18FridayVaetchanan
58292069-07-28SundayVaetchanan
58282068-08-08WednesdayVaetchanan
58272067-07-22FridayVaetchanan
58262066-08-01SundayVaetchanan
58252065-08-12WednesdayVaetchanan
58242064-07-23WednesdayVaetchanan
58232063-08-05SundayVaetchanan
58222062-08-16WednesdayVaetchanan
58212061-07-27WednesdayVaetchanan

Sources and method

Calendar arithmetic: the fixed Hebrew calendar as implemented in hebcal. Portion boundaries: hebcal leyning, diaspora reading cycle, with festival readings taking precedence over the weekly portion. The week of a date is taken to end on the following Shabbat. Both sources are public; anyone can repeat the count and get the same numbers.

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