[Ger-Poland-Volhynia] Re: September 31 ????

[Robert Radke]

This doesn't answer the original question, but perhaps some folk will be 
interested. 

The reason that the Gregorian calendar falls one day further behind the Julian 
calendar each century is because the Gregorian calendar omits leap years in 
years divisible by 100, but the Julian calendar does not.  Thus, once every 
100 years, the Julian calendar has one extra day.

There is one exception to this rule, and it happened in recent memory.  In 
years divisible by 400, the Gregorian calendar keeps its leap year.  So in 
the year 2000 just past, both calendars had a leap year.  The two calendars 
thus continue to differ by just 13 days even though we're in a new century.

So for our Orthodox friends who have just finished celebrating Christmas 
according to the Julian calendar, the date of Christmas didn't shift by one 
day this century as it did at the turn of the last century.

--Bob Radke