Sir Hammer DeRoburt Day is a public holiday in Nauru.
In 2026 it falls on Friday 25 September; in 2027 on Saturday 25 September.
The date is fixed, so only the weekday changes from year to year.
Dates, 2025 to 2028
| Year | Date | Weekday | Note |
|---|---|---|---|
| 2025 | 25 September | Thursday | |
| 2026 | 25 September | Friday long weekend | |
| 2027 | 25 September | Saturday weekend | |
| 2027 | 27 September | Monday long weekend | observed (moved) |
| 2028 | 25 September | Monday long weekend |