New Years Day (in lieu) Calendar When: December 31, 2010 all-day 2010-12-31T00:00:00-06:00 2011-01-01T00:00:00-06:00 Where: USA Holiday in lieu of New Years Day. New Years Day is a public holiday in all countries that observe the Gregorian calendar, with the exception of Israel Information provided by www.officeholidays.com