Public holidays
1666, Netherlands, National holidays
| # | Date | Public holiday |
|---|---|---|
| 1 | Friday, 1 January 1666 | Nieuwjaar |
| 2 | Friday, 16 April 1666 | Goede Vrijdag |
| 3 | Sunday, 18 April 1666 | Eerste Paasdag |
| 4 | Monday, 19 April 1666 | Tweede Paasdag |
| 5 | Friday, 30 April 1666 | Koninginnedag |
| 6 | Thursday, 27 May 1666 | Hemelvaartsdag |
| 7 | Sunday, 6 June 1666 | Eerste Pinksterdag |
| 8 | Monday, 7 June 1666 | Tweede Pinksterdag |
| 9 | Saturday, 25 December 1666 | Eerste Kerstdag |
| 10 | Sunday, 26 December 1666 | Tweede Kerstdag |