If it helps your evaluation, use 1 hour as your rule of thumb for the longest commute time.

I heard it on the radio many years ago that throughout history, commute times had always been about 1 hour. That includes the days of the horse and buggy. Today, the automobile has allowed workers to live further from their work but studies around the world still shows the highest tolerable commute time still to be about 1 hour. And this seems to be true of the many jobs I had throughout my career - and that includes my taking public transit too.

http://news.mit.edu/2014/study-commuting-times-stay-constant-even-distances-change

So on your bicycle, if your body can take it, factor in 1 hour for your maximum commute.