Czechia
| Date | Weekday | Event | Country | Type |
|---|---|---|---|---|
| 28 Sep | Sunday | Statehood Day | Czechia | Public |
| 28 Sep | Sunday | Railway Day | Indonesia | Not public |
| 28 Sep | Sunday | International Bosniaks Day | North Macedonia | Not public |
| 28 Sep | Sunday | Thai National Flag Day | Thailand | Not public |
| 28 Sep | Sunday | Day after Independence Day | Turkmenistan | Public |
| 28 Sep | Sunday | Teacher's Day | Taiwan | Not public |
| 28 Sep | Sunday | Gold Star Mother's Day | United States | Not public |
| 28 Sep | Sunday | Day of Bosnians | Kosovo | Not public |