,----------------+--------+--------+----------.
| Task           | Start  | End    | Duration |
+----------------+--------+--------+----------+
| Task 1         | Jul 20 | Aug 18 | 30 days  |
+----------------+--------+--------+----------+
| Task 2         | Jul 20 | Aug 4  | 16 days  |
+----------------+--------+--------+----------+
| Bob on holiday | Jul 23 | Jul 26 | 4 days   |
`----------------+--------+--------+----------'