後になる (あとになる) Japanese meaning | KotomoraMeanings
1
expression, godan verb (-ru)
become late; fall behind; lag; pass (of time)
Used when something ends up later than expected or when time passes. Often implies a delay or that a scheduled time has already gone by.
会議の開始が後になって、みんなイライラしていた。
The meeting started late, and everyone was irritated.