Chinese New Year (CNY) falls on 19th February this year. That's an unusually late date; CNY generally falls around the beginning of February.
CNY can also fall on 20th February, though that's only happened once in my lifetime.
a. When will CNY next fall on 20th February?
b. Can CNY ever fall on 21st February? If so, when will that happen next?
(In reply to re: computer solution
The Vietnamese site is interesting in that I hadn't found such a description previously. I assume I could get the Vietnamese new year Tet by changing the 8 to a 7 in the line chTZ = -8;, as it's a conversion of the degrees east of Greenwich to hours.
I'm assuming the midnight problem does not crop up in the solar term either in an around 2319, so as to affect the calendar by a month.
Reingold and Dershowitz's Calendrical Calculations mentions only the Japanese variant of the Chinese calendar using a Japanese meridian.
I appreciate the first link's mentioning the fact that the Chinese calendar is lunisolar, rather than lunar. When Chinese new year is referred to as lunar new year, it's a little upsetting, as the only lunar calendar I know of is the Islamic one, where Muharram 1 is a truly lunar new year, regressing through the Gregorian months by 11 or so days every year.
Posted by Charlie
on 2015-01-17 08:45:48