Public holidays
1657, Suisse, Basel-Stadt
| # | Date | Public holiday |
|---|---|---|
| 1 | Monday, 1 January 1657 | New Year's Day |
| 2 | Friday, 30 March 1657 | Good Friday |
| 3 | Monday, 2 April 1657 | Easter Monday |
| 4 | Tuesday, 1 May 1657 | Labour Day |
| 5 | Thursday, 10 May 1657 | Ascension Day |
| 6 | Monday, 21 May 1657 | Whit Monday |
| 7 | Wednesday, 1 August 1657 | Swiss National Day |
| 8 | Tuesday, 25 December 1657 | Christmas Day |
| 9 | Wednesday, 26 December 1657 | Saint Stephen's Day |