Microsoft Power Automate template
Create new Outlook calendar event for approved Trello card
Whenever a new Trello card is added to your board, you will receive an email on a specified email address with the option to allow creating an event for the added card. If you choose yes, a half an hour event will be added to your calendar. You can tweak the time you want to add the event by using the utcnow(), addminutes() or addhours() functions as used in this flow.