https://wccftech.com/galaxy-s21-official-announcement-and-livestream-date-revealed/

The Galaxy S21 cannot catch a break with more and more leaks coming our way. Earlier, Samsung shared a teaser of the upcoming series in the form of a highlight reel, which showed the Galaxy S series's evolution, and if that didn't get you excited, the latest bit of information will.

As per a trusted source, the Galaxy S21 official announcement date and time have been leaked, and yes, it's 14th January 2021.