Video: Subtract time
You can subtract time in Excel almost like you subtract other types of numbers. To do this, you use a formula; there isn’t an AutoSubtract button. Like with adding time, you can also subtract a unit of time, such as 1½ hours, from a time of day, such as 10:00 a.m., by using the TIME function.
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This video is part of a training course called Add or subtract time.