calendar.usholiday revision 1.6
11.1Scgd01/01 New Year's Day 21.1Scgd01/14 Julian Calendar New Year's Day 31.6Sjnemeth01/18* Martin Luther King Day (3rd Monday of January) 41.1Scgd02/02 Groundhog Day 51.1Scgd02/14 St. Valentine's Day 61.6Sjnemeth02/15* President's Day (3rd Monday of February) 71.1Scgd03/05 Mother-in-Law Day 81.6Sjnemeth03/13* Daylight Savings Time begins; clocks move forward (2nd Sunday of March) 91.1Scgd03/17 St. Patrick's Day 101.1Scgd03/20* Vernal Equinox 111.1Scgd04/01 April Fool's Day 121.1Scgd04/15 Income Tax Day 131.5Ssnj04/22 Earth Day 141.5Ssnj04/24* Arbor Day (varies from state to state) 151.6Sjnemeth05/08* Mother's Day (2nd Sunday of May) 161.6Sjnemeth05/21* Armed Forces Day (3rd Saturday of May) 171.6Sjnemeth05/30* Memorial Day (Last Monday of May) 181.6Sjnemeth06/19* Father's Day (3rd Sunday of June) 191.6Sjnemeth06/20* Summer Solstice 201.1Scgd07/04 Independence Day 211.6Sjnemeth09/05* Labor Day (1st Monday of September) 221.6Sjnemeth09/10* Grandparent's Day (2nd Sunday of September; varies from state to state) 231.6Sjnemeth09/22* Autumnal Equinox 241.5Ssnj10/12* Columbus Day (2nd Monday of October) 251.1Scgd10/31 All Hallows Eve (Halloween) 261.5Ssnj11/01* Daylight Savings Time ends; clocks move back (First Sunday in November) 271.6Sjnemeth11/08* Election Day (1st Tuesday after 1st Monday) 281.1Scgd11/11 Veterans' Day 291.5Ssnj11/26* Thanksgiving Day (Fourth Thursday in November) 301.5Ssnj12/22* Winter Solstice 311.1Scgd12/24 Christmas Eve 321.1Scgd12/25 Christmas 331.1Scgd12/31 New Year's Eve 34