September 2026 Calendar
Holidays & observances in September 2026
- Mon, Sep 7Labor DayFederal holiday
Moon phases
- Last quarter Fri, Sep 4
- New moon Sat, Sep 12
- First quarter Sat, Sep 19
- Full moon Sat, Sep 26
About September 2026
- Days30
- Starts onTuesday
- Ends onWednesday
- ISO weeks36–40
- Weekdays (Mon–Fri)22
- Working days after federal holidays21
This printable September 2026 calendar marks Labor Day, shows moon phases and includes a notes area. Use the options to start the week on Sunday or Monday, add ISO week numbers, or switch to the planner template with a to-do column.