what is forex simulator timezone? Ans how to change it?

How to change time zone?

Hello @lourencomata and welcome to the forum!

There is no default time zone in Forex Simulator because it depends on a data set you activated.
For Alpari data sets, for example, data set is GMT+3
To change it, you can click on on the time zone button at the toolbar GMT+3 - you will see a list of all available options and choose a new one.

Best regards,
Max Pastukhov