calendar.usholiday revision 1.8.2.1
1 1.1 cgd 01/01 New Year's Day 2 1.1 cgd 01/14 Julian Calendar New Year's Day 3 1.8.2.1 martin 01/20* Martin Luther King Day (3rd Monday of January) 4 1.1 cgd 02/02 Groundhog Day 5 1.1 cgd 02/14 St. Valentine's Day 6 1.8.2.1 martin 02/17* President's Day (3rd Monday of February) 7 1.1 cgd 03/05 Mother-in-Law Day 8 1.8.2.1 martin 03/08* Daylight Savings Time begins; clocks move forward (2nd Sunday of March) 9 1.1 cgd 03/17 St. Patrick's Day 10 1.1 cgd 03/20* Vernal Equinox 11 1.1 cgd 04/01 April Fool's Day 12 1.1 cgd 04/15 Income Tax Day 13 1.5 snj 04/22 Earth Day 14 1.8.2.1 martin 04/24* Arbor Day (varies from state to state) 15 1.8.2.1 martin 05/10* Mother's Day (2nd Sunday of May) 16 1.8.2.1 martin 05/16* Armed Forces Day (3rd Saturday of May) 17 1.8.2.1 martin 05/31* Memorial Day (Last Monday of May) 18 1.8.2.1 martin 06/21* Father's Day (3rd Sunday of June) 19 1.8.2.1 martin 06/20* Summer Solstice 20 1.1 cgd 07/04 Independence Day 21 1.8.2.1 martin 09/07* Labor Day (1st Monday of September) 22 1.8.2.1 martin 09/06* Grandparent's Day (2nd Sunday of September; varies from state to state) 23 1.8.2.1 martin 09/22* Autumnal Equinox 24 1.8.2.1 martin 10/12* Columbus Day (2nd Monday of October) 25 1.1 cgd 10/31 All Hallows Eve (Halloween) 26 1.8.2.1 martin 11/01* Daylight Savings Time ends; clocks move back (First Sunday in November) 27 1.8.2.1 martin 11/10* Election Day (1st Tuesday after 1st Monday) 28 1.1 cgd 11/11 Veterans' Day 29 1.8.2.1 martin 11/26* Thanksgiving Day (Fourth Thursday in November) 30 1.7 jnemeth 12/21* Winter Solstice 31 1.1 cgd 12/24 Christmas Eve 32 1.1 cgd 12/25 Christmas 33 1.1 cgd 12/31 New Year's Eve 34
Indexes created Fri Oct 17 23:09:53 GMT 2025