1664

The year 1664 (in the Gregorian calendar) started on Tuesday, January 1, and ended on Wednesday, December 31. It was a leap year.

Calendar with holidays
Holidays:
 * New Year's Day: Tuesday, January 1
 * Epiphany: Sunday, January 6
 * Valentine's Day: Thursday, February 14
 * Mardi Gras: Tuesday, February 26
 * Ash Wednesday: Wednesday, February 27
 * Saint Patrick's Day: Monday, March 17
 * April Fools' Day: Tuesday, April 1
 * Palm Sunday: Sunday, April 6
 * Good Friday: Friday, April 11
 * Easter: Sunday, April 13
 * Halloween: Friday, October 31
 * Christmas Eve: Wednesday, December 24
 * Christmas: Thursday, December 25
 * New Year's Eve: Wednesday, December 31