Unlike PTHClock in Panther, wClock happily does pin itself to the right side of the menubar. And wClock's calendar is fine. wClock has fewer options for specifying the format of the date and time, but the options that it has are sufficient for most people, and easier to select than in PTHClock. Unfortunately, wClock seems to have no option to also show the time in another timezone, a PTHClock feature I used daily.