Meanwhile 15-20 minutes for a set. I loosen one string a little, cut it off with a sidecutter, put on a new and go for the next string. It takes about 2-3 minutes per string. I put up as little string as possible (1-2 windings) to the capstan, so a string winder is needless and I would be afraid to scratch my rosewood pegheads.
And after that: play, tune, play, tune, play...
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P.S.: Once a year I clean the fretboard with lemon oil. Of course, this takes more time and I the strings are off all at once.