How many days in September
There are
30 days
in September
- September starting date (mm/dd) is 09/01 – September 1
- September end date (mm/dd) is 09/30 – September 30
- (mm = month, dd = day)
There are 30 days in September.
September is 4 weeks and 2 days long.
When is the first day of September and how many months, weeks and days until September?
POST: September Countdown – How Many Days Until September 1?
Interesting things about September
Here are some interesting facts about September:
Where does the name September come from?
September (in Latin September, or Mensis September) was originally the seventh month of the 10-month calendar, and it originated from the word septem, which means seven.
Did you know: September wasn’t always the ninth month of the year
The year‘s first month in the Roman Calendar was March, and the second was April.
Julius Caesar changed the calendar and added January and February, making the beginning of the year January.
The modern-day calendar is called the Gregorian calendar and is based on the Julian calendar.
POST – How many days until Labor Day: Labor Day Countdown – How Many Days Until Labor Day?
Which months have the same number of days as September
April, June, and November have the same number of days (30 days) as September.
How many days in a month?
Each month has 30 and 31 days, except for February, which has 28 or 29 days (29 during leap years).
The common calendar year is 365 days
The leap year is 366 days.
Months with 28 (or 29) days
February is the only month that has 28 days (common year). During the leap year (every four years), February has 29 days.
Related post: Leap Year List – When Is the Next Leap Year?
Months with 30 days
Months that have 30 days are April, June, September, and November.
Months with 31 days
All the rest seven months have 31 days each month.
Months that have 31 days are January, March, May, July, August, October, and December.
Get up-to-date information:
- Current day number: Current Day Number – What Number Day of the Year Is It?
- Current week numbers: Current Week Number – What Week of the Year Is It?
- Today’s date in numbers: What Is Today’s Date?
- Learn more about the months of the year: Months of the Year – List of Months in Order
September calendar printables
Check the dates in September and print out your favorite free calendar: September Calendar – 20 Cute & FREE Printables
September Phone wallpapers
Find your favorite September phone wallpaper: September Calendar Wallpaper – 38 Cute iPhone Backgrounds
September Desktop backgrounds
Grab your favorite September desktop background: September Desktop Wallpaper – 21 Cute & Free September Calendar Backgrounds