Logging Time to Your Plans
Once you have created a plan, you can easily log time to it in the My Work Calendar.
Watch this video to see how:
To log time against plans:
Click My Work
in the sidebar to open the Calendar.Click the plan card
you want to log time on.
If needed, make changes to the date, time, and description in the Log Time form, and then click Log Time.
The card becomes a worklog
and your time is logged. The plan icon turns gray 
to indicate the worklog's origin.If you delete this worklog, the original plan reappears in the calendar.
To edit the worklog, click it and make changes in the Edit Time Record form.