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September 2025 calendar

September 2025
SunMonTueWedThuFriSat
1Labor Day23456
78910111213
14151617181920
21222324252627
282930

Ready-made PDF (Letter) · Free to print and share copies · Check your print size

September 2025 starts on a Monday and ends on a Tuesday. It has 30 days and 22 weekdays, and one US federal holiday: Labor Day on Monday, September 1.

4 ready-to-print PDFs

Letter (8.5 × 11 in) is the paper in US and Canadian printers; A4 (210 × 297 mm) is the paper almost everywhere else. The Sunday-start files shade each US federal holiday and write its name in its day. The Monday-start files carry no holiday marks, because holidays differ by country. Use the controls above for other settings.

Sunday start, US federal holidays marked

Monday start, no holiday marks

September 2025 at a glance

First and last day
Monday, September 1 to Tuesday, September 30
Days
30 days: 22 weekdays and 8 weekend days, of which 21 are federal workdays
Week rows on the page
5 with a Sunday start, 5 with a Monday start
ISO week numbers
week 36 to week 40
US federal holidays
Labor Day on Monday, September 1

Need the months in a planner binder?

The refill builder puts dated month, week and day pages into one PDF at your planner's page size, with a margin for the rings or discs.

Holidays and week start

Mark US federal holidays or leave them off; the week can start on any day either way. State, school and work holidays aren’t included.

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Print and assemble

Use the same paper size in the PDF and printer settings. Choose Actual size or 100%. Print a sample before making copies.