The Estimated time field is designed to store your task duration guess.
Additionally, the Enterprise plan clients can use it to get a visual clue comparing the time recorded while working on a task, to their estimate on how long that task should have taken.
Once you’ve activated the Estimated Time field in Settings - Card Template, you’re free to add the estimation of how long you think the task should take to the card.
The Estimated time field is set to work in hours. For instance, you can type:
6 - for 6 hours
,5 - for half an hour
:25 - for 25 minutes
When you start working on a previously estimated task, there will be a pale green progress bar displayed at the bottom of the card, notifying you of the running time being within the estimate:
If you end up working on this task for longer than estimated, a new progress bar will be displayed - this time in pale red, showing how far over the estimate you’re going:
After work on the task is done, this little progress bar will be a piece of remaining information on the task card, showing whether you’ve completed the work within or outside of the estimated time: