Public holidays
1823, USA, Illinois
| # | Date | Public holiday |
|---|---|---|
| 1 | Wednesday, 1 January 1823 | New Year's Day |
| 2 | Monday, 20 January 1823 | Martin Luther King Day |
| 3 | Wednesday, 12 February 1823 | Lincoln's Birthday |
| 4 | Monday, 17 February 1823 | Washington's Birthday |
| 5 | Monday, 26 May 1823 | Memorial Day |
| 6 | Thursday, 19 June 1823 | Juneteenth National Independence Day |
| 7 | Friday, 4 July 1823 | Independence Day |
| 8 | Monday, 1 September 1823 | Labor Day |
| 9 | Monday, 13 October 1823 | Columbus Day |
| 10 | Tuesday, 4 November 1823 | Election Day |
| 11 | Tuesday, 11 November 1823 | Veterans Day |
| 12 | Thursday, 27 November 1823 | Thanksgiving |
| 13 | Thursday, 25 December 1823 | Christmas |