The postman comes at 6.30 in the morning, at which time (ie when) I am usually fast asleep.

邮递员早晨6点30分来，这个时候我通常还睡著大觉呢。

youdao

The postman comes at 6.30 in the morning, at which time (ie when) I am usually fast asleep.

邮递员早晨6点30分来，这个时候我通常还睡著大觉呢。

youdao