Scripting support needed on a silly little thing

Okay, since 84.1 sensor.last_boot now returns “2018-12-14T02:01:53-06:00”. Someone want to give me a hand parsing this into a date/time format I can read easily?

Seems like the sensor has gone from a ‘duration’ to a ‘timestamp’ - I haven’t upgraded to 0.84 yet, but maybe this this helps: