From DramaWiki

Getsuku, literally translated as "golden time", is the term given to the TV schedule period of Monday night 21:00 (JST). It is believed that Japanese dramas aired in this timeslot are most anticipated and watched, and are usually of the romance genre. Getsuku is not limited to any one TV network. Therefore, below are the pages covering Getsuku for each TV network:

Other Japanese TV networks can be added to this list.