Months of the year
A complete reference of all 12 months of the year, their order, number of days, and quarters.
Months in a year
There are 12 months in a year: January, February, March, April, May, June, July, August, September, October, November, and December. They total 365 days (366 in a leap year) and are grouped into four quarters of three months each. February is the shortest at 28 or 29 days; the rest have 30 or 31.
About this page
The Gregorian calendar year has 12 months, from January to December, totalling 365 days (366 in a leap year). They group into four quarters of three months each.
Days per month: January 31, February 28/29, March 31, April 30, May 31, June 30, July 31, August 31, September 30, October 31, November 30, December 31. A simple way to remember: "30 days has September, April, June, and November."
What you can use this for
- Quickly checking the order or number of any month.
- Looking up how many days are in a specific month.
- Teaching children the months and their sequence.
- Planning quarters for business or finance.
- Settling the "30 days has September…" question.
Using this reference
The Gregorian calendar year has 12 months, from January to December, totalling 365 days (366 in a leap year). They group into four quarters of three months each. Days per month: January 31, February 28/29, March 31, April 30, May 31, June 30, July 31, August 31, September 30, October 31, November 30, December 31. A simple way to remember: "30 days has September, April, June, and November."
This page is designed as a quick, reliable reference you can return to whenever you need it. It works on any device, needs no account, and can be printed or saved for offline use.
Frequently asked questions
How many months are in a year?
There are 12 months in a calendar year, from January (1st) to December (12th).
Which months have 31 days?
Seven months have 31 days: January, March, May, July, August, October, and December.
Which is the shortest month?
February is the shortest month, with 28 days in a common year and 29 days in a leap year.
What are the four quarters of the year?
Q1 is January–March, Q2 is April–June, Q3 is July–September, and Q4 is October–December.