I can't give an exact time. vaping for me usually is a longer ecperience, wich is also the reason I love vaporizing. when I vape, on weekdays that's often mostly at night, on weekends it can be all day starting right after breakfast, I'll just vape some more whenever I feel like. I don't have to get really high right away, I'm not in a hurry. usually results in a pretty stable high troughut the night(or day), wich ofcourse can peak some, smetimes I vape more at a time, but I discovered I like it best when I keep the dosage lower and spread it out more. especialy now with my UD that's clear, since I like the taste so much and it's so easy I have the tendency to keep loading stems.
I can vape 3-5 stems right away and get a nice strong high going, but I'll pay in the long run, since when that high wears offI can't get a good high going again as easily and harder to keep a constant high. I like it better to start with just 1 stem(glass stem with bowl made pretty smell, I think I load even less in it as the PD-stems hold each time)
or even just 1-2 hits
that way I get a steady, slowly building up high going, and I can keep it going all day with minimal usage of weed.
and when that slowly building up builds up to a stronger high, that stronger high also lasts a lot longer.
but on some ocassions I do a wake&bake on weekdays, and in that case it can last pretty long, actually surprises me a bit everytime how long it can last, it will be the strongest during my bicycleride to the city(wich takes 40-50 minutes), but up till in the afternoon I can feel something. combustion wears off much quicker
my style of usage really has changed a lot since vaping, when I still only combusted(I still combust sometimes), I used to only smoke once or sometimes twice a week, but that one ight a week I would smoke more n a few hours as I now go trough in an entire week.
with my style of vaping I think logs are really perfect, I like the act of vaping so if I had a vape that took more to load I wuld probably go trough it a lot quicker, I've never really had a point where I thought I'd vaped/smoked too much. plenty of times I had enough tough, but still could vape more. so wth only a small load each time I can just keep on vaping a stem now and then, and still using very little AND have satisfying buzz/high troughout the wole vape-time
if I limit t to the efects of ne stem, my times for the buldup are probably similar to the others in here. but troughout that there's also the bigger buildup, wich is over the course of hours.