That works on mine. it displayed the time and said, "the time is 4:10 PM".
My biggest wish list items are "which of my friends have birthdays next week?", "how long until my wife is home?" (put obvious limitations on this one, opt in for sharing with specific circles, etc), "how many days until christmas?" etc. Basically another level of neural networking integration across many (or all) platforms.
That and hardware controls would be cool. "Okay google now, play zombie by the cranberries" could easily be followed by, "okay google now, turn the volume up to 80%". Right now 2nd command does nothing. And, "okay google now, project remaining battery life time", on top of the obvious, "okay google now, what's my current battery %?", blah, blah.