till all hours

• 到深更半夜

till all hours的用法和样例：

例句

1. He often works until the small hours.
   他经常工作到深更半夜。
2. Leisure is not something sandwiched into the wee hours after an exhausting day.
   所谓空闲并不是可以挤在忙了一整天后的三更半夜的东西。