Below is a list of dates when New Year's Eve will occur from 3991 to 4000.
| Year | Date | Day |
|---|---|---|
| 3991 | December 31, 3991 | Tuesday |
| 3992 | December 31, 3992 | Thursday |
| 3993 | December 31, 3993 | Friday |
| 3994 | December 31, 3994 | Saturday |
| 3995 | December 31, 3995 | Sunday |
| 3996 | December 31, 3996 | Tuesday |
| 3997 | December 31, 3997 | Wednesday |
| 3998 | December 31, 3998 | Thursday |
| 3999 | December 31, 3999 | Friday |
| 4000 | December 31, 4000 | Sunday |