Sometimes, we only want to calculate the time difference in individual time units (hours, minutes, or seconds). When you subtract times, Excel will always return decimal numbers. In the resulting value, every whole number represents a day and decimal numbers can be converted to hours, minutes,...
To check a condition, we have to use a logical operation that only results in Boolean values (TRUE or FALSE). But multiplying TRUE or FALSE with the sum_range will only result in 0s. So, to convert those boolean values into usable 1s (TRUE) and 0s (FALSE), we need to enclose the...