Public holidays
1644, Luxembourg, Calendrier bancaire
| # | Date | Public holiday |
|---|---|---|
| 1 | Friday, 1 January 1644 | New Year's Day |
| 2 | Friday, 25 March 1644 | Good Friday |
| 3 | Monday, 28 March 1644 | Easter Monday |
| 4 | Sunday, 1 May 1644 | Labour Day |
| 5 | Thursday, 5 May 1644 | Ascension Day |
| 6 | Monday, 16 May 1644 | Whit Monday |
| 7 | Thursday, 23 June 1644 | National Day |
| 8 | Monday, 15 August 1644 | Assumption of Mary |
| 9 | Tuesday, 1 November 1644 | All Saints' Day |
| 10 | Saturday, 24 December 1644 | Christmas Eve |
| 11 | Sunday, 25 December 1644 | Christmas Day |
| 12 | Monday, 26 December 1644 | St. Stephen's Day |