The flag should be displayed on all days, especially…

•    New Year’s Day January 1
•    Inauguration Day January 20
•    Lincoln’s Birthday February 12
•    Washington’s Birthday 3rd Monday in February
•    Easter Sunday (variable)
•    Mother’s Day 2nd Sunday in May
•    Armed Forces Day 3rd Saturday in May
•    Memorial Day (half staff until noon)
•    Last Monday in May
•    Flag Day June 14
•    Independance Day July 4
•    Labor Day 1st Monday in September
•    Constitution Day September 17
•    Columbus Day 2nd Monday in October
•    Navy Day October 27
•    Veteran’s Day November 11
•    Thanksgiving Day 4th Thursday in November
•    Christmas Day December 25

… such other days as may be proclaimed by the President of the United States; the birthdays of States (date of admission); and on State holidays.