These pages cover lots of interesting information about calendars, and Easter dating.
Find out about the interesting
history of the calendar
as it is shaped by political leaders and a quest for greater accuracy.
A chart shows how calendar changes and Easter dating methods are related.
How is Easter date worked out?
Read about the different Easter dating methods, and the myths about how Easter is NOT calculated!
When is Easter?
Go to this page if you just want to know when an Easter date is.
Information about Easter Dates
This page answers some common questions, such as "How often are Western and Orthodox Easters on the same date?".
to calculate Easter dates?
This page contains algorithms for most popular programming languages.
Need to find a day of the week for any date?
- no calculation is required!