changing timezone to EM406

Hello, I've been reading the user's guide and googling about this. But I haven't gotten to anything yet, anyone knows about a command or set of commands to change the timezone of the Em406? or I have to compute the time in my timezone in code?

Thanks in advance for your responses.

Without knowing that module in particular, GPS modules usually return times in UTC and you are responsible to calculate the time into the timezone you want to have. The advantage you have with a GPS is, that you might determine what timezone you're in by mapping the given coordinates to the know timezones. Don't expect the module to have all the (quite complex) timezone borders stored inside.

Thanks pylon, I was suspecting that.