Public holidays
1640, Suisse, Graubünden
| # | Date | Public holiday |
|---|---|---|
| 1 | Sunday, 1 January 1640 | Jour de l'An |
| 2 | Friday, 6 April 1640 | Vendredi Saint |
| 3 | Monday, 9 April 1640 | Lundi de Pâques |
| 4 | Thursday, 17 May 1640 | Jeudi de l'Ascension |
| 5 | Monday, 28 May 1640 | Lundi de la Pentecôte |
| 6 | Wednesday, 1 August 1640 | Fête nationale suisse |
| 7 | Tuesday, 25 December 1640 | Noël |
| 8 | Wednesday, 26 December 1640 | Saint Étienne |