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How Many Weeks Are In A Year?

A week is a unit of time that has 7 days. There are approximately 52 weeks in a year.

Days in a Year

The definition of a year is the amount of time it takes our planet, Earth, to make one revolution around the Sun. 

A day is the time it takes the Earth to make one rotation on its axis.

Earth rotates on its axis about 365.2422 times a year.

In the Gregorian calendar (introduced in October 1582), the days in a year were shortened to 365 days. Then, every leap year it plays “catch up” by having an extra day in February.

Exact Weeks in a Year

Because there are 365 days in a normal year, there are actually 52.1 weeks in a year, or 52 weeks + a day.

365 Days (per year) ÷ 7 Days (per week) = 52.1428571429 Weeks in a year

A leap year has 366 days, which is equal to 52.3 weeks, or 52 weeks + 2 days.

Weeks in Every Year

Every year has 52 weeks + 1 day, except leap years that have 52 weeks + 2 days.

YearLeapyear?Days in yearWeeks in year
2019No36552 weeks + 1 day
2020Yes36652 weeks + 2 days
2021No36552 weeks + 1 day
2022No36552 weeks + 1 day
2023No36552 weeks + 1 day
2024Yes36652 weeks + 2 days
2025No36552 weeks + 1 day
2026No36552 weeks + 1 day
2027No36552 weeks + 1 day
2028Yes36652 weeks + 2  days

Weeks in a Month

Every month with 31 days has 4.4 weeks (4 weeks + 3 days).

Months with 30 days have 4.3 weeks (4 weeks + 2 days).

February is the shortest month with 28 days that equals exactly 44 weeks. However, in a leap year, it has 29 days and 4.1 weeks (4 weeks + 1 day).

MonthDays in monthWeeks in month
January314.4 weeks (4 weeks + 3 days)
February28; 29 in leap year4 weeks; 4.1 weeks (4 weeks + 1 day)
March314.4 weeks (4 weeks + 3 days)
April304.3 weeks (4 weeks + 2 days)
May314.4 weeks (4 weeks + 3 days)
June304.3 weeks (4 weeks + 2 days)
July314.4 weeks (4 weeks + 3 days)
August314.4 weeks (4 weeks + 3 days)
September304.3 weeks (4 weeks + 2 days)
October314.4 weeks (4 weeks + 3 days)
November304.3 weeks (4 weeks + 2 days)
December314.4 weeks (4 weeks + 3 days)

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