Insert code to auto-refresh current webpage every 120 seconds?

Insert code to auto-refresh current webpage every 120 seconds?

Assume I load a web page which is occasionally updated on the server (=not under my control).

To get the updated information I always have to click refresh in my browser.
This is unhandy.

How can I automatize that?

I can imagine that there is a jQuery/javascript/CSS code which I can insert and which tells the browser to
automatically update the loaded webpage every e.g. 120 seconds.

How does that work in detail?

Thank you
Peter