Costa Rica , Guatemala , Honduras , Nicaragua , El Salvador
| Date | Weekday | Event | Country | Type |
|---|---|---|---|---|
| 15 Sep | Monday | Independence Day | Costa Rica , Guatemala , Honduras , Nicaragua , El Salvador | Public |
| 15 Sep | Monday | Respect for the Aged Day | Japan | Public |
| 15 Sep | Monday | Cry of Dolores | Mexico | Not public |
| 15 Sep | Monday | Return of Primorska to the Motherland | Slovenia | Not public |
| 15 Sep | Monday | Our Lady of Sorrows | Slovakia | Public |
| 15 Sep | Monday | Silpa Bhirasri Day | Thailand | Not public |