You can make the time that you have more useful though.
There are activities that you can do in the dark and some that you can’t do in the dark. I imagine that they wanted to sleep in late which was cutting into hunting time so they changed the time zone so that it was dark while they were sleeping and light a bit later to allow for more hunting.
It’s why we have daylight saving time.
It is arbitrary, yes. Part of the reason for daylight savings time was simply to match most people’s waking hours to a standard time throughout the year.