01/01 New Year's Day 01/14 Julian Calendar New Year's Day 01/20* Martin Luther King Day (3rd Monday of January) 02/02 Groundhog Day 02/14 St. Valentine's Day 02/17* President's Day (3rd Monday of February) 03/05 Mother-in-Law Day 03/08* Daylight Savings Time begins; clocks move forward (2nd Sunday of March) 03/17 St. Patrick's Day 03/20* Vernal Equinox 04/01 April Fool's Day 04/15 Income Tax Day 04/22 Earth Day 04/24* Arbor Day (varies from state to state) 05/10* Mother's Day (2nd Sunday of May) 05/16* Armed Forces Day (3rd Saturday of May) 05/31* Memorial Day (Last Monday of May) 06/21* Father's Day (3rd Sunday of June) 06/20* Summer Solstice 07/04 Independence Day 09/07* Labor Day (1st Monday of September) 09/06* Grandparent's Day (2nd Sunday of September; varies from state to state) 09/22* Autumnal Equinox 10/12* Columbus Day (2nd Monday of October) 10/31 All Hallows Eve (Halloween) 11/01* Daylight Savings Time ends; clocks move back (First Sunday in November) 11/10* Election Day (1st Tuesday after 1st Monday) 11/11 Veterans' Day 11/26* Thanksgiving Day (Fourth Thursday in November) 12/21* Winter Solstice 12/24 Christmas Eve 12/25 Christmas 12/31 New Year's Eve