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| Datediff | iduser | start_date |
|---|---|---|
| null | 1 | 2020-02-21 08:24:07 |
| 00:00:01 | 1 | 2020-02-21 08:24:08 |
| 06:44:12 | 1 | 2020-02-21 15:08:20 |
| 00:00:01 | 1 | 2020-02-21 15:08:21 |
| 00:00:01 | 1 | 2020-02-21 15:08:22 |
| null | 2 | 2020-02-20 15:08:22 |
| 00:07:00 | 2 | 2020-02-20 15:15:22 |
| null | 3 | 2020-02-20 15:08:22 |
| 00:07:00 | 3 | 2020-02-20 15:15:22 |
| 00:05:00 | 3 | 2020-02-20 15:20:22 |