Especially if you analyze metrics where a time variable plays a role, it may be important to adjust the timezone of your account accordingly. If you want to change the timezone of your account please click on your name in the bottom left hand corner, then click on 'Personal Settings', and select the 'Preferences' section.

Other formats such as number format, date format, week definition, CSV separator and CSV & Excel export file encoding, are to make sure you have exactly the format you wish to see directly in the tool and also exports.