| # | Start Date | End Date | Relative Delta |
|---|---|---|---|
| 1 | 2021-09-20 | 2021-10-20 | months=1 |
| 2 | 2021-09-20 | 2021-10-21 | months=1, days=1 |
| 3 | 2021-09-20 | 2021-08-20 | months=-1 |
| 4 | 2021-09-20 | 2021-11-20 | months=2 |
| 5 | 2021-09-20 | 2021-10-27 | months=1, days=7 |
| 6 | 2021-09-20 | 2022-08-20 | months=11 |
| 7 | 2021-09-20 | 2022-10-20 | years=1, months=1 |
| 8 | 2021-09-20 | 2021-09-30 | days=10 |
| 9 | 2021-09-20 | 2021-10-02 | days=12 |