Can someone please explain me the "TIME" field of the output of "prstat -p<pid>" command ? The man page says it is "The cumulative execution time for the process". Does it mean how many hrs:min:sec the process is running ? If so then I'm not getting the desired output.
Can someone pls help me in this regard ?

Thanks

Yes, it does mean 'running'. Running in the sense that the process is in the cpu and some processing is going on. Not 'running' in the sense the process is on the system. Think of it this way - if you logon to a server and don't touch the keyboard or run a command, your process is idle (not running in cpu) but it's still there. This is not the TIME that is showing in prstat. You could have a process that has been on the system for days but the TIME shown in prstat won't show that you have days of time. When you type a command and hit return, if there is a need for cpu time, then prstat will show what amount of TIME was in the cpu (for computations, etc). Prstat will show the user and system TIME in that output for each process.

If I understand your response correctly, the values shown under TIME are in CPU time. But the other part of the poster's question was whether those values represented hours:minutes:seconds or what. That is my question, as well, since there is a dearth of information about this.

It is indeed hours:minutes:seconds as the source code shows:
Cross Reference: /onnv/onnv-gate/usr/src/cmd/prstat/prutil.c

The output is hrs:min:sec. It does NOT indicate how long the process has been running, just the amount of CPU time it has used, that is- actual processing time. Apache can run for years but if there's no traffic then the CPU time will be low because it will not need to process much.
STIME output of `ps -ef` will tell you when it started.

Have you noticed that STIME of `ps -ef ` only shows hrs:mins for the same day, then moves on to dates ? E.g

root 518 1 0 Mar 30 ? 0:01 /usr/sbin/ssserver
ora10g_1 11112 1 0 12:18:58 ? 0:03 oracledataw03l (LOCAL=NO)

SBK