Lazarevac is a Belgrade municipality in name and a Kolubara mining town in practice, and its shift patterns show in the opening hours: the counter on Stefana Nemanje opens at 08:00 and runs to 02:00, the widest window anywhere in the network.
The second, on Nikole Vujačića, keeps the ordinary 09:00 to 23:00. Between them they cover most of the day, which in a town where people finish work at odd hours is the point rather than a detail.