Public holidays
1640, Russia
| # | Date | Public holiday |
|---|---|---|
| 1 | Sunday, 1 January 1640 | New Year Holiday |
| 2 | Monday, 2 January 1640 | New Year Holiday |
| 3 | Tuesday, 3 January 1640 | New Year Holiday |
| 4 | Wednesday, 4 January 1640 | New Year Holiday |
| 5 | Thursday, 5 January 1640 | New Year Holiday |
| 6 | Friday, 6 January 1640 | New Year Holiday |
| 7 | Saturday, 7 January 1640 | New Year Holiday |
| 8 | Sunday, 8 January 1640 | New Year Holiday |
| 9 | Thursday, 23 February 1640 | Defender of the Fatherland Day |
| 10 | Thursday, 8 March 1640 | Women's Day |
| 11 | Wednesday, 18 April 1640 | Orthodox Easter |
| 12 | Tuesday, 1 May 1640 | Spring and Labour Day |
| 13 | Wednesday, 9 May 1640 | Victory Day |
| 14 | Tuesday, 12 June 1640 | Russia Day |
| 15 | Sunday, 4 November 1640 | Unity Day |
| 16 | Monday, 5 November 1640 | Unity Day |