U.S. Public Holidays & Celebrations
Federal Public Holidays
| January 1st | New Year's Day |
| 3rd Monday in January | Martin Luther King's Birthday |
| 3rd Monday in February | Washington's Birthday |
| Last Monday in May | Memorial Day |
| July 4th | Independence Day |
| 1st Monday in September | Labor Day |
| 2nd Monday in October | Columbus Day |
| November 11th | Veterans Day |
| 4th Thursday in November | Thanksgiving Day |
| December 25th | Christmas Day |
Virtually all the states observe certain other days during the year; the principal ones are:
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February 12th Lincoln's Birthday
Good Friday
Note: normally, if a holiday falls on a Sunday the following Monday is observed; if on a Saturday, the previous Friday.
Other American Celebration Days
| Groundhog Day | February 2nd¹ |
| Mother's Day | Second Sunday in May |
| Father's Day | Third Sunday in June |
¹ Traditionally, if the sun is shining on this day, and a groundhog sees his shadow, he returns to his burrow , and winter continues for six more weeks.
Daylight Saving Time
Daylight Saving Time (DST) is achieved by advancing the clock one hour. Most states, the District of Columbia, and U.S. possessions observe Daylight Saving Time beginning at 2.00 a.m. on the second Sunday in March, and ending at 2.00 a.m. on the first Sunday of November. Arizona, Hawaii, American Samoa, Puerto Rico, and the Virgin Islands do not observe DST.