| 1/1/1905, Sun | New Year's Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 1/2/1905, Mon | New Year's Day: Additional Observance Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 1/26/1905, Thu | Australia Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- 1999 Parades, special events
|
| 3/13/1905, 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.
|
| 4/16/1905, Sun | Palm Sunday |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 4/21/1905, Fri | Good Friday |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 4/22/1905, Sat | Easter Saturday |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 4/23/1905, Sun | Easter |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 4/24/1905, Mon | Easter Monday |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 4/25/1905, Tue | Anzac Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- Commemoration March
|
| 6/12/1905, Mon | Queen's Birthday/Volunteer's Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 9/1/1905, Fri | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 9/2/1905, Sat | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 9/3/1905, Sun | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 9/4/1905, Mon | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 9/5/1905, Tue | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 9/6/1905, Wed | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 9/7/1905, Thu | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 9/8/1905, Fri | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 9/9/1905, Sat | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 10/2/1905, Mon | Labor Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 12/24/1905, Sun | Christmas Eve |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 12/25/1905, Mon | Christmas Day |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 12/26/1905, Tue | Boxing Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 12/31/1905, Sun | New Year's Eve |
- Businesses Closed
- PM
- Religion
- –
- Disrespectful to Hold an Event
- –
|