How many weeks are there in a year?

Simple answer: 52 weeks 

Precise answer: Just under 52 weeks 1 day and 6 hours

52 weeks 1 day and just under 6 hours

1 year is the time it takes for the earth to go around the sun. But since the Earth spins on it’s axis and we call one of those spins a day, then we can give a measurement in days and therefore weeks fairly accurately.

We all know there are 7 days in a week. But I’ve always wondered why people say there are 52 weeks in a year.
After all, 52*7 is only 364 and we all know there are 365 days in a non-leap year and 366 days in a leap year.

Therefore there are always MORE than 52 weeks in a year. Sometimes 52 weeks 1 day (non-leap year). Sometimes 52 weeks and 2 days (leap year).

 

A leap year occurs every year that is divisible 4 with the exception of every century year not divisible by 400

 

It is fairly common for people to say there are actually 365 and a quarter days (365.25) in a year. But that is also wrong as this doesn’t account for the centuries that are not divisible by 400 and therefore not a leap year. It would be correct to say that ‘it takes the earth just less than 365.25 days to go around the sun’.

In the Gregorian calendar there are only 365 days, therefore on leap years an extra day is added on February 29th to account for this quarter of a day deviation, which would otherwise lead to the calendar being out of sync with reality after not too long. The next leap day is February 29th 2020.

Is 2016 a leap year?

Yes. It is divisible by 4

Is 2017 a leap year?

No. It is NOT divisible by 4

Is 2018 a leap year?

No. It is NOT divisible by 4

Is 2019 a leap year?

No. It is NOT divisible by 4

Is 2020 a leap year?

Yes. It is divisible by 4

Is 2000 a leap year?

Yes. It is centurial and it is divisible by 400

Is 1900 a leap year?

No. It is centurial and NOT divisible by 400

Is 2100 a leap year?

No. It is centurial and NOT divisible by 400

What about working days?

 

How many working days are there in a year?

How many working days are there in September 2016?

How many working days are there in October 2016?

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