酒店营业中“一天”的概念一般指从早上6：00开始，然而只有在当日确定的结账时间以后抵店的顾客才能入住客房。

The hotel day usually starts at 6:00am, however, occupancy of rooms by arriving guests may not be possible until after the established check-out time.

youdao

如果客人没有抵店，所有没有保证的预定（没有确切的预定到达时间的）预定都将被挑选出来并保留到1800小时。

All non-guaranteed reservations without expected arrival time are singled out and released by 1800hrs if the guest did not arrive.

youdao

如果客人没有抵店，所有没有保证的预定（没有确切的预定到达时间的）预定都将被挑选出来并保留到1800小时。

All non-guaranteed reservations without expected arrival time are singled out and released by 1800hrs if the guest did not arrive.

youdao