Formula fields now support calculations using the following Date and Time fields:
  • Start Date
  • Due Date
  • Date Started
  • Date Updated
  • Date Closed
  • Time tracked (in hours)
  • Time Estimated (in Hours)
  • Date (Custom Field)
This makes it easy to calculate the age of tasks, estimate the cost of a task based on time spent, and so much more. The options are truly endless. Here's a few examples:
Calculating Cost Estimates
field("Rate") * field("Time estimated in hours")
Calculating the Age of a Task
DAYS(TODAY(), field("Date created"))