September 2027 Calendar
Holidays & observances in September 2027
- Mon, Sep 6Labor DayFederal holiday
Moon phases
- New moon Wed, Sep 1
- First quarter Wed, Sep 8
- Full moon Thu, Sep 16
- Last quarter Thu, Sep 23
About September 2027
- Days30
- Starts onWednesday
- Ends onThursday
- ISO weeks35–39
- Weekdays (Mon–Fri)22
- Working days after federal holidays21
This printable September 2027 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.