If it's 3:30 AM (the next day), there are 1440 – 3×60 – 30 = 1350 minutes left until the next day.*
If it's today, there are 1440 – 3×60 – 30 = 780 minutes left today.
*If you're reading this in a clock or digital calendar, the time is actually 15:30.
*15×60 + 30 = 930 minutes have passed since midnight (12:00 AM).
*If it's been 24 hours or more since midnight, there are 1440 – 930 = 510 minutes left in the day.
所以，距离下午3:30还有510分钟。*
如果你是在等待午休时间的开始或者即将到期的截止日期的第二天，总共有540分钟（从午休开始到下班结束）。
