On what day of the week were you born?

Issue 54
March 2010

Practice page

This page will help you master the calculations required to perform the day-of-the-week trick. Click on the buttons to generate random numbers, months, years or dates, and to check your results. (If the page seems faulty, check that have JavaScript enabled in your web browser.)

Remainder after dividing by 7


Month offset


Decade offset


Leap year offset


Random date (between 1900 and 2019)

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