| employee_id | start_time | end_time |
| ----------- | ------------------- | ------------------- |
| 1 | 2023-10-01 09:00:00 | 2023-10-01 17:00:00 |
| 1 | 2023-10-01 15:00:00 | 2023-10-01 23:00:00 |
| 1 | 2023-10-01 16:00:00 | 2023-10-02 00:00:00 |
| 2 | 2023-10-01 09:00:00 | 2023-10-01 17:00:00 |
| 2 | 2023-10-01 11:00:00 | 2023-10-01 19:00:00 |
| 3 | 2023-10-01 09:00:00 | 2023-10-01 17:00:00 |