Conn()
FUNCTION: 
conn(<player
Returns the number of seconds that <player|port> has been connected. If <player|port> is not connected then -1 is returned.
If <player|port> is numeric, it's taken as a port number (as shown in SESSION). Otherwise, it's treated as a player name. If the named player is connected more than once, the longest connect time is returned.
Example
> WHO Player Name On For Idle Doing Wizard 00:04 1m Mortal 00:11 0s Evinar 00:12 6m Idle. :) 3 Players logged in. > say conn(wiz) You say, "251" > say conn(e) You say, "770" > say conn(frobozz) You say, "-1"