101/01 New Year's Day 201/14 Julian Calendar New Year's Day 302/02 Groundhog Day 402/14 St. Valentine's Day 502/18* President's Day (3rd Monday of February) 603/05 Mother-in-Law Day 703/17 St. Patrick's Day 803/20* Vernal Equinox 904/01 April Fool's Day 1004/15 Income Tax Day 1103/10* Daylight Savings Time begins; clocks move forward (2nd Sunday of March) 1204/28* Arbor Day (varies from state to state) 1305/12* Mother's Day (2nd Sunday of May) 1405/18* Armed Forces Day (3rd Saturday of May) 1505/27* Memorial Day (Last Monday of May) 1606/16* Father's Day (3rd Sunday of June) 1706/21* Summer Solstice 1807/04 Independence Day 1909/02* Labor Day (1st Monday of September) 2009/08* Grandparent's Day (2nd Sunday of September; varies from state to state) 2109/22* Autumnal Equinox 2210/14* Columbus Day (2nd Monday of October) 2311/03* Daylight Savings Time ends; clocks move back (First Sunday in November) 2410/31 All Hallows Eve (Halloween) 2511/04* Election Day (1st Tuesday after 1st Monday for even years) 2611/11 Veterans' Day 2711/28* Thanksgiving Day (Fourth Thursday in November) 2812/21* Winter Solstice 2912/24 Christmas Eve 3012/25 Christmas 3112/31 New Year's Eve 32