When Does "The Gilded Age" Season One (2022) Take Place?

"The Gilded Age" season one is a historical fiction television show showrun by Julian Fellowes and first released January 24th, 2022. 

It takes place in the year: 

1882 AD 

We know this because the first shot of the first scene of the first season includes a place and year setting title card over the footage. 

This ScreenRant article by Zachary Moser examining its exact setting.