Would love to see this as well. As mentioned already it would help to be able to see the smaller tasks I can burn through quickly (or put together in a time slot). It would also help to be able to quickly see tasks to which I haven't yet added a time estimate.

I am also keen to have this feature added. I would like to be able to sort by duration so I can burn through the quick and easy tasks and clear them off my list.

Might also be useful for looking at the longest tasks and trying to break them down into smaller chunks.

+1! It would be helpful to sort by duration to see what larger chunks of time I have scheduled vs. a ton of tiny tasks. Thank you!