What's unit of CPU_TIME & ELAPSED_TIME columns in v$sqlarea

Hi,
Oracle 9.2.0.4 on Solaris 9.
What is the time unit of CPU_TIME & ELAPSED_TIME columns in v$sqlarea?
The Database Reference says it is in microseconds (1/1000 seconds?).
My java code would get the query result even before the database engine finishes parsing the query string. Either the doc is wrong, or the data in the v$sqlarea is not right.
It seems to me that the unit should be 1/1000000 seconds.
Anybody knows what the unit really is in those columns?
Thanks,
Harry

Anyone any idea by what logic "10s of milliseconds" can translate to .000001 seconds?
I can see how it could mean .01 seconds (10 times a millisecond) or .0001 seconds (a tenth of a millisecond), but .000001 seconds seems a long way off.
Would you remember where you found those numbers?

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