| Date | Weekday | Event | Country | Type |
|---|---|---|---|---|
| 20 May | Saturday | The Unity Day |
Cameroon More... |
Public |
| 20 May | Saturday | May 20 Revolution |
Western Sahara More... |
Public |
| 20 May | Saturday | Shackleton Day |
South Georgia and the South Sandwich Islands More... |
Public |
| 20 May | Saturday | National Awakening Day |
Indonesia More... |
Not public |
| 20 May | Saturday | National Day of Remembrance |
Cambodia More... |
Public |
| 20 May | Saturday | Independence Restoration Day |
Timor-Leste More... |
Not public |
| 20 May | Saturday | Saturday of Europe Day Weekend |
Ukraine More... |
Not public |
| 20 May | Saturday | Armed Forces Day | Not public | |
| 20 May | Saturday | Preakness Stakes |
United States More... |
Not public |