You can use effort estimates for this. They are covered in the manual
here: https://orgmode.org/manual/Effort-estimates.html#Effort-estimates
After assigning an effort estimate to a task, you can filter all tasks
with an estimate less-than, equal-to, or greater-than a specified number
of
Is it possible to schedule a task on a day without a time, but have a
duration?
I have several tasks that are not bound to a time, but will be done when I
have some spare time. It would be handy if there was a way the estimated
duration of those tasks so I can choose the right one.
And in
