There is a Todoist-Google Calendar integration that allows you to set a length of time for each task so that Google Calendar is automatically able to set the time block to be of the correct size. The way to do this is by adding a at the end of each task name where X is the number of minutes it would take to complete the task. It would be awesome if Sunsama was able to parse the same shorthand at the end of each task name to automatically set the time to completion for a task as well.