Below is a list of dates when Martin Luther King Jr. Day will occur from 4120 to 4129.
| Year | Date | Day |
|---|---|---|
| 4120 | January 15, 4120 | Monday |
| 4121 | January 20, 4121 | Monday |
| 4122 | January 19, 4122 | Monday |
| 4123 | January 18, 4123 | Monday |
| 4124 | January 17, 4124 | Monday |
| 4125 | January 15, 4125 | Monday |
| 4126 | January 21, 4126 | Monday |
| 4127 | January 20, 4127 | Monday |
| 4128 | January 19, 4128 | Monday |
| 4129 | January 17, 4129 | Monday |