common year starting on Friday

This is the calendar for any common year starting on Friday (dominical letter C). Examples: Gregorian years 2021 & 2010 or Julian years 1910 & 1899 (see bottom tables).A common year is a year with 365 days, i.e. not a leap year.This is the only year type where the nth "Doomsday" (this year Sunday) is not in ISO week  n; it is in ISO week n-1.
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