Date and time display at tournaments

I have a question about displaying date and time in tournaments. I'm on a team with members from different countries. I also manage the tournaments and specify my time zone in Germany for the date and time (CET) when creating the tournaments. My question is whether the members who come from other time zones can see their time zone at the tournaments? I have specified a different country in my profile settings on a trial basis, but the date and time have not changed as a result. I was amazed. That's why I'm asking. Or is this due to the settings of the operating system?

@odoaker2015 Yes, each player sees their own time for when the tournament is held.

But I did specify another Country in my profile settings for a trial and nothing has changed! @learningchesskid3

Here is an example: lichess.org/swiss/7DM1EwJO What date and time do you see?

July 5, 2020 at 1:30 PM (I live in EST) @odoaker2015
Switching to another country won't help. It's what your device's time is.

Therefore my question if it is due to the settings of the os! @learningchesskid3
I see July 5th, at 7:30 PM. That's my time zone. Thanks for your answer!