Divide Value of a Entity and Display in Dashboard

I have a UPS that is monitored by HA. One of the entities is the Battery Run Time in seconds. I would like to display it in minutes, so need to divided the number by 60.

I have creased a new sensor in configuration.yaml like this:

platform: template
sensors:
    Minutes-UPS-600:
      friendly_name: "Minutes UPS-600"
      unit_of_measurement: 'min'
      value_template: "{{ ( states('sensor.ups_600_battery_runtime_2') | int / 60 ) | round(0) }}"

When I test this out in Developer Tools> Template it does the correct division and shows 93 minutes:

It appears my calculation is correct, but after restarting HA no new entity appears showing this value. I assume it would be “sensor.Minutes-UPS-600”.

Seems like I am missing a basic concept here. Can some someone point me in the correct direction?

There’s no need for any of that.

Click on the run time entity. Click on the cog icon. Change the unit to “min”.

Thanks Tom. I wasted a ton of time on this. So simple!