I will travel to two offices (let's call them A and B ) in another town. You can imagine the route shaped as letter Y. I am traveling from C and going to visit A and then B . A and B are in the same zone, but I have to go back one stop and then turn left.
I bough a daily pass ticket between C and A and it says:
Valid for unlimited travel on all public transportation services within the applicable zones during the period of validity. Period of validity: 1 calendar day until 05:00 a.m. the following day. C - A 5 zones
Can I use this ticket to go from A to B ?
Yes.
The ticket reports the names of C and A, but that is because it's how the ticket was generated. It should also report the zone numbers.
Have a look at the tariff zone map for the area you are living in.