You haven't forgotten that we planned to go out for drinks Friday night, have you?
Viet makes a backup of our data every Friday night.
"When will my Fugu costume be ready?" "It’ll be ready by Friday afternoon."
This is a day of the week. You know this because it has 曜日 in it. But what day of the week is it? The gold day of the week is the greatest day. It's the day that makes you feel like gold because it's the end of the weekdays and the beginning of the weekend! This day is Friday.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well. It will help to know the word 曜日 as well.