Public holidays
1664, Finland
| # | Date | Public holiday |
|---|---|---|
| 1 | Tuesday, 1 January 1664 | New Year's Day |
| 2 | Sunday, 6 January 1664 | Epiphany |
| 3 | Friday, 11 April 1664 | Good Friday |
| 4 | Sunday, 13 April 1664 | Easter Sunday |
| 5 | Monday, 14 April 1664 | Easter Monday |
| 6 | Thursday, 1 May 1664 | May Day |
| 7 | Thursday, 22 May 1664 | Ascension Day |
| 8 | Sunday, 1 June 1664 | Whit Sunday |
| 9 | Saturday, 21 June 1664 | Midsummer Day |
| 10 | Saturday, 1 November 1664 | All Saints' Day |
| 11 | Saturday, 6 December 1664 | Independence Day |
| 12 | Thursday, 25 December 1664 | Christmas Day |
| 13 | Friday, 26 December 1664 | St Stephen's Day |