## How many different months have exactly thirty days?

So, there are 4 months in a year that have 30 days. The months having 31 days in a year are January, March, May, July, August, October, and December.

## How many months have neither 30 or 31 days?

February has neither 30 and 31 days It ‘s a month of 28/29 days.

## What do you call a month with 31 days?

January – 31 days. February – 28 days in a common year and 29 days in leap years. March – 31 days. April – 30 days. May – 31 days.

## Why does February have 28 days?

But, in order to reach 355 days, one month had to be an even number. February was chosen to be the unlucky month with 28 days. To account for the entire 365.25 day-long year, one day was added to February every four years, now known as a “leap year.” During most years, this left February with just 28 days.

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## How many months does 28 days have?

All 12 months have at least 28 days February is the only month with exactly 28 days (except for leap years when February has 29 days).

## Why do we have 12 months in a year?

Why are there 12 months in the year? Julius Caesar’s astronomers explained the need for 12 months in a year and the addition of a leap year to synchronize with the seasons. These months were both given 31 days to reflect their importance, having been named after Roman leaders.

## What months dont have 31 days?

Well, there’s a good reason for that and you’ve probably already guessed it: those aren’t even real days! If you check your calendar, you’ll notice that February only has 28 days (unless it’s a leap year), September only has 30 days, October only has 31 days, and November only has 30 days.

## What is a period of 30 days called?

Also called calendar month. the time from any day of one calendar month to the corresponding day of the next. a period of four weeks or 30 days. Also called so·lar month.

## What is the saying to remember what months have 31 days?

“Thirty Days Hath September”, or “Thirty Days Has September”, is a traditional verse mnemonic used to remember the number of days in the months of the Julian and Gregorian calendars.

## What order does the months go in?

The 4 months of April, June, September and November all have 30 days. The 7 months of January, March, May, July, August, October and December all have 31 days. February is the only month that has 28 days.

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## Why is Feb the shortest month?

There’s a rumour that the reason why February is the shortest month of the year is because another king named Augustus Caesar stole a day from February to add to the month named after him — August. However, the real reason February is shorter begins with the fact that the first calendar was only 10 months long.

## Which is the longest month?

January is the longest month of the year. This feeling, however, on the surface at least makes no sense. Several months in the year have 31 days in them. If any month should be made fun of for how long it lasts, it should be February.

## Who Invented leap year?

Leap days were first added to the Julian Calendar in 46 B.C. by Julius Caesar at the advice of Sosigenes, an Alexandrian astronomer. Celebrating the leap year? Take a moment to thank Christopher Clavius (1538-1612).