Public holidays
1020, USA, South Dakota
| # | Date | Public holiday |
|---|---|---|
| 1 | Saturday, 1 January 1020 | New Year's Day |
| 2 | Monday, 17 January 1020 | Martin Luther King Day |
| 3 | Monday, 21 February 1020 | Washington's Birthday |
| 4 | Monday, 29 May 1020 | Memorial Day |
| 5 | Tuesday, 4 July 1020 | Independence Day |
| 6 | Monday, 4 September 1020 | Labor Day |
| Friday, 10 November 1020 | Veterans Day (observance) | |
| 7 | Saturday, 11 November 1020 | Veterans Day |
| 8 | Thursday, 23 November 1020 | Thanksgiving |
| 9 | Monday, 25 December 1020 | Christmas |