point in time with duplicate
I've done a duplicate with the "until time" clause.
RMAN does translate this time into a SCN and uses this SCN in its memory scripts "set until scn ..."
When I check the SCN to the corresponding archive log I found, that this is the first SCN (first_change#) of the archive log.
However I set the "until time" clause to a time in the middle of the archive log, not to the beginning.
So the used SCN is about 5 minutes before the time I defined in the duplicate command.
How can I duplicate to a time in between an archive log file?