Timezone in CET

Hello Box Team,

The return result from either an API or an enterprise event, the timestamp is something like this:20**removed**T01:05:**removed**:00 . 

For both the input parameters to the API and the return results are in the above format. I have 2 questions here:

(1) How do I make sure that I can pass the date/time stamp in CET and also obtain the results in CET? 

(2) If the timezone settings need to be changed, Will that be at the user level or at the enterprise account level? Because if it is at user level, I hope the user timezone is extracted from the account level.