Public holidays
1691, Australia, South Australia
| # | Date | Public holiday |
|---|---|---|
| 1 | Monday, 1 January 1691 | New Year's Day |
| 2 | Friday, 26 January 1691 | Australia Day |
| 3 | Monday, 12 March 1691 | Canberra Day/Adelaide Cup/Eight Hours Day/Labour Day |
| 4 | Friday, 13 April 1691 | Good Friday |
| 5 | Saturday, 14 April 1691 | Easter Saturday |
| 6 | Monday, 16 April 1691 | Easter Monday |
| 7 | Wednesday, 25 April 1691 | Anzac Day |
| 8 | Monday, 11 June 1691 | King's Birthday |
| 9 | Monday, 1 October 1691 | Labour Day/King's Birthday |
| 10 | Tuesday, 25 December 1691 | Christmas Day |
| 11 | Wednesday, 26 December 1691 | Boxing Day/Proclamation Day |