Public holidays
1644, Canada, Federal Holidays
| # | Date | Public holiday |
|---|---|---|
| 1 | Friday, 1 January 1644 | New Year's Day |
| 2 | Friday, 25 March 1644 | Good Friday |
| 3 | Monday, 23 May 1644 | Victoria Day |
| 4 | Friday, 1 July 1644 | Canada Day |
| 5 | Monday, 5 September 1644 | Labour Day |
| 6 | Monday, 10 October 1644 | Thanksgiving |
| 7 | Friday, 11 November 1644 | Remembrance Day |
| 8 | Sunday, 25 December 1644 | Christmas |
| 9 | Monday, 26 December 1644 | Boxing Day |
| Tuesday, 27 December 1644 | Christmas (observance) |