Show remaining time from Timestamp on Picture Elements card

Hi,

I’m trying to do a Picture Elements Card for my Dishwasher, which should also show the remaining time.
Since the remaining time is given as a timestamp, all the possible elements show e.g.: “2020-08-03T10:23:55.824688+00:00”

I found no element, that allows to set the format for the output.
How do I display that timestamp as a remaining time on that card?

Create a value template sensor that reads this timestamp and returns it in a format you want.
That is how I would do it.

Thanks for the hint,

dishwasher_remaining:
        value_template: '{{ (as_timestamp(states("sensor.geschirrspuler_remaining_program_time")) - as_timestamp(now())) | timestamp_custom("%M") }}'

did the trick.