Is it normal for heat to work only in certain hours?

So in my apartment, heat only works a couple of hours in total a day (I’d say 8). My landlord said “It’s not on in the daytime because most people aren’t in the apartment building anyway”.
I was wondering if this is normal. I asked all of my friends and they said their homes were hot. I am however wearing a hat, gloves and a snow coat inside my apartment right now.

Thanks!