I've always found it funny that many of the older TOS pocket books have references to spending weeks studying nebulae. They get into all these adventures and still manage to do scientific research.
Well, for the first three years of the 5YM, the bridge crew only worked about 52 mins per week. The next year, they were down to just 22 mins per week. Gotta have something to keep the 380+ crew we never met
busy, something to do with their time!