Public holidays
1644, Suisse, Tessin
| # | Date | Public holiday |
|---|---|---|
| 1 | Friday, 1 January 1644 | New Year's Day |
| 2 | Wednesday, 6 January 1644 | Epiphany |
| 3 | Saturday, 19 March 1644 | Saint Joseph's Day |
| 4 | Monday, 28 March 1644 | Easter Monday |
| 5 | Sunday, 1 May 1644 | Labour Day |
| 6 | Thursday, 5 May 1644 | Ascension Day |
| 7 | Monday, 16 May 1644 | Whit Monday |
| 8 | Thursday, 26 May 1644 | Corpus Christi |
| 9 | Wednesday, 29 June 1644 | Saints Peter and Paul |
| 10 | Monday, 1 August 1644 | Swiss National Day |
| 11 | Monday, 15 August 1644 | Assumption of Mary |
| 12 | Tuesday, 1 November 1644 | All Saints' Day |
| 13 | Thursday, 8 December 1644 | Immaculate Conception |
| 14 | Sunday, 25 December 1644 | Christmas Day |
| 15 | Monday, 26 December 1644 | Saint Stephen's Day |