to lose track of time
01
to have no idea how much time has passed or what has happened
![to [lose] track of time definition and meaning](https://cdn.langeek.co/photo/44124/original/?type=jpeg "to [lose] track of time definition and meaning")
Idiom
例
When she starts reading a captivating novel, she often loses track of time and ends up staying up late.
to have no idea how much time has passed or what has happened
Idiom
