September 2026 calendar with holidays
7 holidays30 days21 working daysISO weeks 36–40
Federal holidaysObservancesReligious dates
| ISO week | Sun | Mon | Tue | Wed | Thu | Fri | Sat |
|---|---|---|---|---|---|---|---|
| 36 | |||||||
| 37 | |||||||
| 38 | |||||||
| 39 | |||||||
| 40 |
Federal holidays
- Labor DayMon Sep 7
Observances
- Patriot DayFri Sep 11
- National Grandparents DaySun Sep 13
Religious dates
- Rosh HashanahSat Sep 12
- Yom KippurMon Sep 21
- MabonTue Sep 22
- SukkotSat Sep 26
About this calendar
September 2026 carries 7 holidays in total: 3 on the US secular calendar and 4 religious. Only 1 is a day off — a tinted cell here marks an observance, not a holiday from work.
Jewish and Islamic dates begin at sunset on the evening before the day shown, and the Islamic ones follow the Umm al-Qura calendar, where local moon sighting can move observance by a day. Hindu festivals are not listed: they are lunisolar and vary by region and by panchang, and a guess would be worse than an absence.