2 ms·

so did things end at 11:15am as I imagine a lot of times there was something to be done in the next hour of 11AM?

• codethief 1y ago
  At the universities I've been to classes were almost always 1½ hours, so until 11:45am.
• Delk 1y ago
  Generally, a single-slot class was 45 minutes. So a slot at "10 AM" would have started at 10:15 AM and ended at 11:00 AM. Most lectures were allocated double slots, though, for example from 10 to 12. In that case the actual official lecture time would have been either 10:15 to 11:00, followed by a quarter hour break, and another 45 minutes from 11:15 to 12:00. Alternatively -- and probably more commonly -- there was no break, and the lecture was 1.5 hours from 10:15 to 11:45.