1 BC

The year 1 BC (in the proleptic Julian calendar) started on Thursday, January 1, and ended on Friday, December 31. It was (proleptically) a leap year (in the proleptic Julian calendar, which would also have been a century leap year in the proleptic Gregorian calendar). Also, it was the last year of the 1st century BC.

Calendar with holidays
Holidays:
 * New Year's Day: Thursday, January 1
 * Leap Day: Sunday, February 29
 * Halloween: Sunday, October 31
 * New Year's Eve: Friday, December 31