| 1/1/1991, Tue | New Year's Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 1/28/1991, Mon | Australia Day: Actual Observance Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- 1999 Parades, special events
|
| 3/11/1991, Mon | Adelaide Cup Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- One of largest horse races in Australia, public holiday. Changed from May to March in 2007.
|
| 3/24/1991, Sun | Palm Sunday |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 3/29/1991, Fri | Good Friday |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 3/30/1991, Sat | Easter Saturday |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 3/31/1991, Sun | Easter |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 4/1/1991, Mon | Easter Monday |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 4/25/1991, Thu | Anzac Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- Commemoration March
|
| 6/10/1991, Mon | Queen's Birthday/Volunteer's Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 9/6/1991, Fri | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 9/7/1991, Sat | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 9/8/1991, Sun | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 9/9/1991, Mon | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 9/10/1991, Tue | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 9/11/1991, Wed | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 9/12/1991, Thu | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 9/13/1991, Fri | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 9/14/1991, Sat | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 10/7/1991, Mon | Labor Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 12/24/1991, Tue | Christmas Eve |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 12/25/1991, Wed | Christmas Day |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 12/26/1991, Thu | Boxing Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 12/31/1991, Tue | New Year's Eve |
- Businesses Closed
- PM
- Religion
- –
- Disrespectful to Hold an Event
- –
|