| 1/1/1980, Tue | New Year's Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 3/17/1980, Mon | St. Patrick's Day |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
- Note
- Large street crowds, City Center streets closed for parade
|
| 3/30/1980, Sun | Palm Sunday |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 4/4/1980, Fri | Good Friday |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 4/5/1980, Sat | Holy Saturday |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 4/6/1980, Sun | Easter |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 4/7/1980, Mon | Easter Monday |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 5/5/1980, Mon | May Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 6/2/1980, Mon | June Bank Holiday |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 8/4/1980, Mon | August Bank Holiday |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 10/27/1980, Mon | October Bank Holiday |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 12/24/1980, Wed | Christmas Eve |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 12/25/1980, Thu | Christmas Day |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 12/26/1980, Fri | St. Stephen's Day |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 12/27/1980, Sat | Day after St. Stephen's Day |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 12/29/1980, Mon | Day after St. Stephen's Day: Additional Observance Day |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 12/31/1980, Wed | New Year's Eve |
- Religion
- –
- Disrespectful to Hold an Event
- –
|