It's so long since I did one of those I'm not sure I can still remember the moves. But I know I used to be able to do it in a couple of minutes too.
The "official" world record is about 12 seconds, but that is just "official" championships.
The same site shows the record in 1983 as just over 17 seconds, but I remember several times under 14 seconds from back then. Seems the unofficial record is now under 10 seconds.
The fastest time for solving the cube blindfolded (yes, it can be done) is under 3 minutes, and that includes the time for memorising the starting position.
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