I'm using the TimeGT function for a Performance Equation tag and have come to realize that I'm not sure what the unit of measurement it returns. I reviewed the PI Live Library, and found this: PI Server. However, I don't see the unit of measurement explicitly stated. I think it's seconds, but I want to be sure. The function I'm using, in case it makes a difference, looks like the following: TimeGT('WS_RainRate','*-10m','*',0).