How to present correct times to users?

[hippylover]

Hello, I have made a script i want to share with users located around the world. The script get's times from a server feeding it in UTC this format(string):

'2018-07-30T13:20:39.943Z'

There's 2 display settings in my script. One that shows human-friendly output and one that shows the date and time. When i do:

pendulum.parse(data['datetime'], tz=pendulum.local_timezone()).diff_for_humans()

The time comes out correct(at least on my machine). That is to say, if something happened right now and let's say my local clock here in oslo is 18:45 then the server will send a signal to my script saying it happened 16:45 and the diff_for_humans() function converts it to for ex "1 second ago" and i am happy.

However, if the user chooses to not have "human friendly" datetime display the time with this command:

pendulum.parse(x['datetime'], tz=pendulum.local_timezone()).to_datetime_string()

It will show the time as 16:45 which is not what i want...

How do i make pendulum give the correct datetime even if the diff_for_humans() function is not ran? If i can avoid having to ask which timezone the user is in in the script, that would also be best.