| Date | Holiday |
|---|---|
| 2028-01-01 | New Year's Day |
| 2028-01-17 | Martin Luther King Jr. Day |
| 2028-03-06 | Guam History and Chamorro Heritage Day |
| 2028-05-29 | Memorial Day |
| 2028-06-19 | Juneteenth |
| 2028-07-04 | Independence Day |
| 2028-07-21 | Liberation Day |
| 2028-09-04 | Labor Day |
| 2028-10-09 | Columbus Day |
| 2028-11-02 | All Souls' Day |
| 2028-11-10 | Veterans Day (substitute day) |
| 2028-11-11 | Veterans Day |
| 2028-11-23 | Thanksgiving Day |
| 2028-12-08 | Our Lady of Camarin Day |
| 2028-12-25 | Christmas Day |