Brunei Darussalam More...
| Date | Weekday | Event | Country | Type |
|---|---|---|---|---|
| 31 May | Saturday | Armed Forces Day | Brunei Darussalam More... | Public |
| 31 May | Saturday | Dragon Boat Festival | Public | |
| 31 May | Saturday | Surinal | North Korea More... | Public |
| 31 May | Saturday | World No Tobacco Day | Poland More... | Not public |
| 31 May | Saturday | Mid-Year Festival | Vietnam More... | Not public |
| 31 May | Saturday | World No Tobacco Day | global | Other |