I think I am a little confused about your question. What information do you have? It sounds like all you have is
- locations of each office
- do you know the timezones of these offices?
- and a computer with python 2, which is currently at one of the offices.
So a big question is, what kind of answer are you looking for? If you want to input an time that West Coast office is open and see if the other two offices are open at that time, simply figure out the timezones, figure out the hour difference they are from the West coast office, add those differences to your current time, then check if that's open or closed. Of course those have their own difficulties with data representation, but the logic is simple enough.
Is that what you are looking for?
Also, another factor could be if offices have different time schedules on different days. If so you have to take into account the day of the week.