Public holidays
1668, USA, Iowa
| # | Date | Public holiday |
|---|---|---|
| 1 | Sunday, January 1, 1668 | New Year's Day |
| Monday, January 2, 1668 | New Year's Day (observance) | |
| 2 | Monday, January 16, 1668 | Martin Luther King Day |
| 3 | Sunday, February 12, 1668 | Lincoln's Birthday |
| Monday, February 13, 1668 | Lincoln's Birthday (observance) | |
| 4 | Monday, May 28, 1668 | Memorial Day |
| 5 | Tuesday, June 19, 1668 | Juneteenth National Independence Day |
| 6 | Wednesday, July 4, 1668 | Independence Day |
| 7 | Monday, September 3, 1668 | Labor Day |
| 8 | Sunday, November 11, 1668 | Veterans Day |
| Monday, November 12, 1668 | Veterans Day (observance) | |
| 9 | Thursday, November 22, 1668 | Thanksgiving |
| 10 | Friday, November 23, 1668 | Black Friday |
| 11 | Tuesday, December 25, 1668 | Christmas |