When delaying tasks in a gantt diagram the expected behavior would be that closed days are ignored. Since all other time values also ignore closed days. Instead you have to count closed days + delayed days.
Example:
@startgantt
saturday are closed
sunday are closed
2022-07-04 to 2022-07-15 is closed
Project starts 2022-06-27
[task1] starts at 2022-06-27 and lasts 1 week
[task2] starts 2 days after [task1]'s end and lasts 3 days
@endgantt
I would expect task2 to last from Wednesday (2022-07-20) to Friday (2022-07-22). Since the begin after the closed days is Monday (2022-07-18) and delayed by two days would be Wednesday. But to achieve this behavior I have to do the following:
@startgantt
saturday are closed
sunday are closed
2022-07-04 to 2022-07-15 is closed
Project starts 2022-06-27
[task1] starts at 2022-06-27 and lasts 1 week
[task2] starts 18 days after [task1]'s end and lasts 3 days
@endgantt
