摘要：He started working hard much too late in the day—he couldn't possibly catch up. (他努力工作到开始的太晚了，不可能赶上。) [牛津高级学者辞典]

late in the day用于表达动作或行为太晚而无济于事，这里的day不再是时间的“天”[当然理解成“天时”的“天”也可以]，如

【例句1】It's too late in the day to start studying - your final exams are next week. （现在才开始学习已经太晚了——你的期末考试就在下周。）[剑桥高级学者辞典]

【例句2】He started working hard much too late in the day—he couldn't possibly catch up. (他努力工作到开始的太晚了，不可能赶上。) [牛津高级学者辞典]

【例句3】It's a bit late in the day to start having objections. （现在才开始有目标，有点晚了。） [朗文当代英语词典]

来源：慕青教育