| Date | Weekday | Event | Country | Type |
|---|---|---|---|---|
| 15 May | Monday | Teacher's Day |
Colombia More... |
Not public |
| 15 May | Monday | Third Day of the Birth of King Norodom Sihamoni |
Cambodia More... |
Public |
| 15 May | Monday | Teachers' Day | Not public | |
| 15 May | Monday | Family Day |
Mongolia More... |
Not public |
| 15 May | Monday | Day after Independence Day |
Paraguay More... |
Public |
| 15 May | Monday | Mother's Day |
Paraguay More... |
Not public |
| 15 May | Monday | Peace Officers Memorial Day |
United States More... |
Not public |