Both team badges, competition, kick-off time, venue — the day-before announcement that sets the weekend in motion.
The fixture graphic is the kick-off announcement — both team badges, competition name, date, kick-off time and venue. It goes out the day before the match and it is the post that sets the weekend in motion.
Parents check it for travel times. Fans check it to confirm they remembered the right day. Sponsors see it because it is usually the highest-reach graphic of the week — everyone in the club's network sees the fixture announcement whether they follow the team or not.
The day before kick-off. Friday evening for a Saturday match, Saturday evening for a Sunday match. It is the only graphic with a fixed calendar slot — every other graphic reacts to what happens on the day.