Google Chat does NOT show the person's last time in the app. Hangouts did. Hangouts would say "last seen 30 min ago", "last seen 3 hours ago", "last seen 2 days ago", etc. Chat simply says "away". Away for how long, 5 min? 2 hours? 3 days? This is awful, especially when it's a large group, nationwide (did they see the last msg? Are they out sick? Are they back from lunch yet?) Showing "away" doesn't mean anything.