| Date | Weekday | Event | Country | Type |
|---|---|---|---|---|
| 17 May | Saturday | Constitution Day | Public | |
| 17 May | Saturday | Liberation Day | Democratic Republic of the Congo | Public |
| 17 May | Saturday | Saturday of Europe Day Weekend | Ukraine | Not public |
| 17 May | Saturday | Armed Forces Day | Not public | |
| 17 May | Saturday | Preakness Stakes | United States | Not public |