The flag can be displayed on all days, but in particular it should be flown on:

• New Year's Day, January 1
• Inauguration Day, January 20
• Lincoln's Birthday, February 12
• Washington's Birthday, third Monday in February
• Easter Sunday (variable)
• Mother's Day, second Sunday in May
• Armed Forces Day, third Saturday in May
• Memorial Day (half-staff until noon), the last Monday in May
• Flag Day, June 14
• Independence Day, July 4
• Labor Day, first Monday in September
• Constitution Day, September 17
• Columbus Day, second Monday in October
• Navy Day, October 27
• Veterans Day, November 11
• Thanksgiving Day, fourth Thursday in November
• Christmas Day, December 25
• Other days as may be proclaimed by the President of the United States
• The birthdays of States (date of admission)
• State holidays
• Patriot Day  September 11 Half staff sunrise to sunset

On Memorial Day, the flag should be hung at half-staff until noon, then it should be raised to the top of the staff.