| Date | Weekday | Event | Country | Type |
|---|---|---|---|---|
| 18 Sep | Monday | National Holiday |
Chile More... |
Public |
| 18 Sep | Monday | Respect for the Aged Day |
Japan More... |
Public |
| 18 Sep | Monday | Haritalika Teej |
Nepal More... |
Public |
| 18 Sep | Monday | Air Force Birthday |
United States More... |
Not public |