How do I creade a clock Widget?

[Roxana]

Hi,

I'm having trouble adding clock widget to my page.  I've tried pasting HTML code to my page and it doesn't work. What steps am I missing?

Link to clock: https://www.zeitverschiebung.net/en/clock-widget?size=medium&timezone=America/Sao_Paulo&type=city&id=3448439

Thank you! :)