Help calculating an average Start Time? - response (1) by dnoeth

I'm afraid you can't do an average on a TIME :-(
But it's not that complicated :-)

   TIME '00:00:00'
   + CAST(AVG(EXTRACT(HOUR FROM starttime) * 3600 + 
              EXTRACT(MINUTE FROM starttime) * 60 +
              EXTRACT(SECOND FROM starttime)) AS INT) * INTERVAL '00:00:01' HOUR TO SECOND

 
Btw, you can do an AVG(DATEcol)...
Dieter