Below is a list of dates when Martin Luther King Jr. Day will occur from 3990 to 3999.
| Year | Date | Day |
|---|---|---|
| 3990 | January 15, 3990 | Monday |
| 3991 | January 21, 3991 | Monday |
| 3992 | January 20, 3992 | Monday |
| 3993 | January 18, 3993 | Monday |
| 3994 | January 17, 3994 | Monday |
| 3995 | January 16, 3995 | Monday |
| 3996 | January 15, 3996 | Monday |
| 3997 | January 20, 3997 | Monday |
| 3998 | January 19, 3998 | Monday |
| 3999 | January 18, 3999 | Monday |