What do clocks look like in YOUR house?

CP:  Did you microwave that tamale for 1:70?
Me: 1:70? ::puzzled::
CP:  Yeah, 1:70.  It says 2 minutes but I just did it for 1:70 and it was fine.
Me: Your microwave lets you do 1:70?
CP:  170 seconds.  Just under 2 minutes.
Me:  ::::more puzzled::::
CP:  Oh….. not 1:70…. I get it.  60 seconds, ha ha.  Ok. I mean, I put it in for 200…
Me:  You mean 2 minutes?
CP:  200 seconds
Me:  ::::am I the one that doesn't understand time??::::
CP:  200 is 2 minutes, right?  I just put if for 200 and stopped it with 30 seconds left, so that’s like 170, right?
Me:  2 minutes is 120 on my microwave. What’s your microwave look like?
CP:  Well I just put it for 200 and stopped it when it said 30…
Me:  …..we’re not putting you in charge of any countdowns.