With some (but not all) protocols, you can adjust time zone offset in session settings:
https://winscp.net/eng/docs/ui_login_environment
What protocol are you using?
You can also change your local timezone to Turkish.

I work from the Netherlands, with servers located in the UK, but for Business Units over several countries, with their own sessions.
If I work together with Local IT in Turkey (as example) I would like to talk with them about log-files with the same timestamp. And in this case the Turkish Timestamp.
But I see them in my own local timezone.
Is it possible to connect to a site and see the timestamps in the timezone of the Business Unit?

btw, just installed version 5.19.3