Use a tag in Todoist to sync the event duration (30min, 1h, 2h...). Ability to sync all or some Todoist projects Sync are done with a dedicated Outlook calendar Case 1 I create a task in Todoist with a tag 30min with a due date 01/07/2022 5:00pm Pleexy creates an event in the Outlook "Todo" calendar at 01/07/2022 5:00pm lasting 30min Case 2 I create an event in Outlook in the "Todo" calendar lasting 1h on 01/07/2022 12:00pm Pleexy creates a taks in Todoist with the due date 01/07/2022 12:00pm & the tag "1h"