Public holidays
1640, Suisse, Tessin
| # | Date | Public holiday |
|---|---|---|
| 1 | Sunday, 1 January 1640 | New Year's Day |
| 2 | Friday, 6 January 1640 | Epiphany |
| 3 | Monday, 19 March 1640 | Saint Joseph's Day |
| 4 | Monday, 9 April 1640 | Easter Monday |
| 5 | Tuesday, 1 May 1640 | Labour Day |
| 6 | Thursday, 17 May 1640 | Ascension Day |
| 7 | Monday, 28 May 1640 | Whit Monday |
| 8 | Thursday, 7 June 1640 | Corpus Christi |
| 9 | Friday, 29 June 1640 | Saints Peter and Paul |
| 10 | Wednesday, 1 August 1640 | Swiss National Day |
| 11 | Wednesday, 15 August 1640 | Assumption of Mary |
| 12 | Thursday, 1 November 1640 | All Saints' Day |
| 13 | Saturday, 8 December 1640 | Immaculate Conception |
| 14 | Tuesday, 25 December 1640 | Christmas Day |
| 15 | Wednesday, 26 December 1640 | Saint Stephen's Day |