There is the possibility to insert a time estimate on tasks?
If you're referring to a due time, you can set tasks to dates with times such as "tomorrow @ 2pm" or "ev Fri at 13:20".
If you're referring to a duration or a task, that's unfortunately not possible directly, but you could add labels representing the estimated durations such as @2h or @5h. This would also allow you to easily search for tasks with the same duration simply by searching for the @2h label.
I'll be glad to be notified once this task duration feature is added to your interface, so that I can migrate back from RTM.
Been using software for a few days now. I really like it so far. I would appreciate this feature as well. It is sometimes difficult to know whether it is possible to get through a days task list. The label don't really help in this situation if you want to know estimate how many hours you need to allocate in a day. Is there any plan to add it to the feature list?