September 2023 calendar
View the complete September 2023 calendar with weekday layout, holiday context, and week numbers. Print it, subscribe to related calendars, or switch to holidays by country.
Holidays and highlights for United States
September 2023
Pick a day for details, print this view, or sync United States holidays to your apps.
September 2023
This month
Planning September 2023
September signals the transition from summer to autumn in the Northern Hemisphere. A month of new beginnings as schools resume. In 2023, this month starts on Friday and includes 21 weekdays (9 weekend days).
Season & highlights
Autumn begins around September 22-23. Temperatures start to cool and leaves begin changing colors.
- Labor Day (1st Monday - US/Canada)
- Autumn Equinox (around September 22-23)
- Jewish High Holidays (varies)
Quick facts
- September was the seventh month in the original Roman calendar
- Sapphire is the birthstone for September
- Aster and morning glory are September's birth flowers
Use the grid above for exact weekdays in September 2023, then print a PDF or open the country holiday list when leave planning needs official closure dates.
Use this September 2023 calendar
Check dates fast
Use the interactive month view to inspect weekdays, weekends, week numbers, and date details without leaving the page.
Plan around holidays
Switch to holiday-focused pages when you need country-specific leave planning, long weekends, or official observances.
Print or sync
Turn this month into a printable PDF or subscribe to related calendars if you want these dates inside your everyday calendar app.
About September 2023
Month summary
September 2023 has 30 days, starts on Friday, and ends on Saturday. It spans 5 calendar rows in this layout.
There are 21 weekdays and 9 weekend days. Quarter 3of 2023 falls in autumn for the Northern Hemisphere.
U.S. holiday outlook
U.S. federal holidays this month include Labor Day (Sep 4).
1 long weekend can be planned around observed Friday or Monday holidays.