September 2025 Calendar

"Calendar by Month and Year" Calculator

Calendar

What does the September 2025 calendar look like?

Answer

has 30 days across 5 calendar weeks, days 244 to 273 of the year. The month starts on Monday, September 1 and ends on Tuesday, September 30.

September 2025 week by week

September 2025
WkSunMonTueWedThuFriSat
36123456
3778910111213
3814151617181920
3921222324252627
40282930

Quarter 3 of 2025 · ISO weeks 36–40

The same month in other years

September 2024September 2026September 2027September 2028September 2029September 2030

Holidays

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  • Days Between Two Dates - Calculate the Difference Between Two Dates. How many days, months, and years are between two dates? From date to date calculator
  • Days until Date - How many days, weeks, months and years until a Date. How Many Days Until My Birthday? Countdown to date

About "Calendar by Month and Year" Calculator

This calendar lays the chosen month out week by week — weekdays, ISO 8601 week numbers, day-of-year numbers and the holidays that fall inside it. The "Year" option gathers all twelve months onto one page. For example, it can help you find out what does the September 2025 calendar look like? (The answer is: Monday, September 1 – Tuesday, September 30). Pick the month (e.g. "August") and the year (e.g. "2026"), then hit the 'Calculate' button.

"Calendar by Month and Year" Calculator

Calendar

Months of 2025

MonthDays in monthStarts on
January 202531Wednesday
February 202528Saturday
March 202531Saturday
April 202530Tuesday
May 202531Thursday
June 202530Sunday
July 202531Tuesday
August 202531Friday
September 202530Monday
October 202531Wednesday
November 202530Saturday
December 202531Monday

FAQ

What does the September 2025 calendar look like?

September 2025 has 30 days across 5 calendar weeks, days 244 to 273 of the year. The month starts on Monday, September 1 and ends on Tuesday, September 30.

What day of the week does September 2025 start on?

The 1st falls on Monday, September 1, and the month ends on Tuesday, September 30.

How many calendar weeks does September 2025 span?

September 2025 spreads over 5 rows of the calendar and opens in ISO week 36. On the English grid every week starts on Sunday.

Which holidays fall in September 2025?

2 holidays fall in this period: Labor Day, Autumn.

See Also