Though it is not possible to have different time-zones for numbers in a call list, WombatDialer lets you run
multiple campaigns in parallel.
So we suggest running a separate campaign for each time-zone, so it can have separate "opening hours" for each.
It is perfectly okay to have multiple campaigns running using the same trunk and end-point, and they will share
the load based on their priority (as a starting point, make sure they are have the same priority).