| Date | Weekday | Event | Country | Type |
|---|---|---|---|---|
| 22 May | Wednesday | Buddha's Birthday | Public | |
| 22 May | Wednesday | Mother's Day | Israel More... | Not public |
| 22 May | Wednesday | Bălţi Day | Moldova More... | Not public |
| 22 May | Wednesday | Day after Independence Day | Montenegro More... | Public |
| 22 May | Wednesday | Full Moon Day of Kasong | Myanmar More... | Public |
| 22 May | Wednesday | Mongolia Fried Rice Day | Mongolia More... | Not public |
| 22 May | Wednesday | Buddha Day | Malaysia More... | Public |
| 22 May | Wednesday | Vesak Day | Singapore More... | Public |
| 22 May | Wednesday | Emergency Medical Services for Children Day | United States More... | Not public |
| 22 May | Wednesday | National Maritime Day | United States More... | Not public |
| 22 May | Wednesday | Unity Day | Yemen More... | Public |