Public holidays
1641, USA, Montana
| # | Date | Public holiday |
|---|---|---|
| 1 | Tuesday, 1 January 1641 | New Year's Day |
| 2 | Monday, 21 January 1641 | Martin Luther King Day |
| 3 | Tuesday, 12 February 1641 | Mardi gras day/Lincoln's Birthday |
| 4 | Monday, 18 February 1641 | Washington's Birthday |
| 5 | Monday, 27 May 1641 | Memorial Day |
| 6 | Thursday, 4 July 1641 | Independence Day |
| 7 | Monday, 2 September 1641 | Labor Day |
| 8 | Monday, 14 October 1641 | Columbus Day |
| 9 | Tuesday, 5 November 1641 | Election Day |
| 10 | Monday, 11 November 1641 | Veterans Day |
| 11 | Thursday, 28 November 1641 | Thanksgiving |
| 12 | Wednesday, 25 December 1641 | Christmas |