The times below are, (A.) the first time I beat the games (without a walkthrough); and (B.) the first time I beat the games with 100% using a walkthrough. I always keep track of my play times, so the times below are pretty much exact.
LoZ: A. 2 weeks, B. 6 hours
AoL: A. 1 month and 3 days, B. 32 hours
AlttP: A. 36 hours, B. 12 hours
AoL: A. about 2 weeks, B. 23 hours
OoT: A. 2 weeks and 1 day, B. 35 hours
MM: A. 1 week and 4 days, B. 41 hours
OoS: A. 23 hours, B. 14 hours
OoA: 17 hours, B. 10 hours
FS: A. 6 hours, B. Never beaten with 100%
TWW: A. 3 weeks and 2 days, B. 46 hours
FSA: A. 21 hours, B. 12 hours
TMC: A. 63 hours, B. 30 hours
TP: A. 2 weeks, B. 47 hours
PH: A. 1 week 6 days, B. 32 hours
ST: A. 3 weeks, B. 38 hours
SS: A. 46 hours, B. 53 hours