I live near a border crossing thats opening hours are set in the time zone on the other side. My side doesn't observe DST. The other side does. The border keep

I live near a border crossing thats opening hours are set in the time zone on the other side. My side doesn't observe DST. The other side does. The border keeps different Summer and Winter hours. Trying to figure out when I need to leave to make sure I get to the border during its open hours to get through, and then when I need to leave (in local time on the other side) to get back through during the open hours is an extremely tedious problem. Worst part is crossing the border is just me driving South. My longitude doesn't really change.