,------------------+-------+--------+----------.
| Task             | Start | End    | Duration |
+------------------+-------+--------+----------+
| task01           | Day 1 | Day 4  | 4 days   |
+------------------+-------+--------+----------+
| task02           | Day 5 | Day 12 | 8 days   |
+------------------+-------+--------+----------+
| <back:red>task03 | Day 1 | Day 7  | 7 days   |
+------------------+-------+--------+----------+
| <back:red>t4     | Day 8 | Day 8  | 1 day    |
`------------------+-------+--------+----------'