Hey all,
I have been trying to get this going now for way too long. What I would like is a sensor that holds a value like “1 day, 10 minutes” (or similar) which is populated by the time difference between now and what an “input_datetime” sensor has for its value.
In other words, If the “input_datetime” sensor has 2022-08-17 14:19:37, and now is 2022-08-17 15:19:37, my new sensor should say 1 hour.
Any input most appreciated. 
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