Public holidays
1640, Suisse, Wallis
| # | Date | Public holiday |
|---|---|---|
| 1 | Sunday, 1 January 1640 | New Year's Day |
| 2 | Monday, 19 March 1640 | Saint Joseph's Day |
| 3 | Thursday, 17 May 1640 | Ascension Day |
| 4 | Thursday, 7 June 1640 | Corpus Christi |
| 5 | Wednesday, 1 August 1640 | Swiss National Day |
| 6 | Wednesday, 15 August 1640 | Assumption of Mary |
| 7 | Thursday, 1 November 1640 | All Saints' Day |
| 8 | Saturday, 8 December 1640 | Immaculate Conception |
| 9 | Tuesday, 25 December 1640 | Christmas Day |