It changes all the time for me as a student who works in after school care, i often have many periods a year of both no uni and no work from 2 weeks to 8 weeks (summer break) long, the unis try and match their holidays to school holidays for the benefit of staff with kids. if i legitimately have nothing on ill vape all day erry day until the day i have something to do. Currently work has just started up again after summer, so i am only vaping from about 7pm-2am daily, i probably vape about 3 big ssv bowls, maybe 4. Once uni starts in a few weeks, im going to switch over to using the cera from 7-12 and then only firing up the ssv after midnight to get me totally blasted before bed. I use cannabis to treat lifelong sleep problems i suffer from (insomnia, ocd, cant switch off) so being extremely stoned before bed is crucial. But i feel like the cera which does not hit me enough to make me sleep, but does give me a great buzz, i feel like it will help me use less weed and be more switched on the next day for uni. On weekends i normally vape up around 2 if i have nothing on, later if i do.