# How many days in January

There are

31 days

in January

• January starting date (mm/dd) is 01/01 – January 1
• January end date (mm/dd) is 01/31 – January 31
• (mm = month, dd = day)

There are 31 days in January

January is 4 weeks and 3 days long.

When is the first day of January and how many months, weeks and days until January?

## How many days in each month

Here are some interesting facts about January:

### Where does the name January come from?

January (in Latin, Ianuarius, or Mensis Ianuarius) was named after the Roman god Janus, who looked both backward to the past and forwards to the future.

### Did you know: January wasn’t always the first month of the year

The first month of the year in the Roman Calendar was March.

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.

### The First day of the year

According to Gregorian calendar the first day of the year is January 1st, New Year‘s Day.

But what are the first days of the year for other calendars?

Check out this post: What year is it? – Current Year today

Related post – How many days until New Year: New Year Countdown – How Many Days Until New Year?

## Which months have the same number of days as January

March, May, July, August, October, and December have the same number of days (31 days) as January.

## 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.

## January calendar printables

Check the dates in January and print out your favorite free calendar: January 2024 Calendar – 20 Cute & FREE Printables

## January Phone wallpapers

Find your favorite January phone wallpaper: January Calendar Wallpaper – 39 Cute Backgrounds For Your Phone

## January Desktop backgrounds

Grab your favorite January desktop background: January Desktop Wallpaper – 21 Cute & Free January Calendar Backgrounds