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Tables for the Weekday
of any date between 1809-2100
with an example
Typo in third sentence corrected 18 April 20111 or 8: Sunday, 2 or 9: Monday, 3 or 10: Tuesday, 4 or 11: Wednesday, 5 or 12: Thursday, 6 or 13: Friday, 7: Saturday
Choose the year, and look at Table 1. Make a note of the J number in the last column. If the year is a leap year (marked L), look for the date in Table 3. Otherwise look for the date in Table 2. Make a note of the D number in the last column.
The weekdays are numbered as:
Then the desired weekday has the number J + D
Table 1. Years
Table 2. Dates in ordinary years
Table 3. Dates in leap years
Part of a 1912 Diary
For 1912, Table 1 gives J = 1 and the L means it is a leap year. Then Table 3 for 26 September gives D = 4. Then J + D = 5, indicating Thursday, as in the picture.
Checks have been made but this page comes with no warranty. I am grateful to Prof.dr.ir. Michel M.J. Decré for alerting me to a typo.
Century years such as 1900 and 2100 are not leap years; but a year such as 2000 is a leap year because it is exactly divisible by 400.
Up to History page.
Copyright (C) Anthony P. Stone 2014. This material may be freely used, provided the author is acknowledged.
Last updated: 18 June 2014