a tight schedule 紧凑的日程安排；排得紧紧的时间表；紧张的日程

【例句】
As you have a tight schedule, I will not take up more of your time.
您的日程很紧，我就不多占用您的时间了。

Most company personnel are on a tight schedule, and it saves your time and theirs by planning ahead and scheduling appointments.
绝大多数商务人员都有一个排得紧紧的时间表。