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# What is the calculation formula to find the day of the week if a date is given?

Updated: 9/19/2023

Chatterjeeviv

Lvl 1
13y ago

There is no simple formula; you basically have to count days. Here is an example:

Today, Feb. 8, 2011 is a Tuesday. What date is April 1, 2011?

Count: 20 days remaining in February, 31 days in March, 1 day in April, total 52 days. If you divide that by 7, you have a remainder of 3 (that is to say, 49 days, or 7 x 7 days, from now will again be a Tuesday. Now count off the three days: Wednesday, Thursday, Friday. So the answer is Friday.

You can also use some computer program. For example, Excel has functions to calculate the day of the week for any day within a certain range.

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13y ago

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