Write negative hours in Excel cell

Occasional Visitor

Hi, when I try to insert a negative time in an Excel cell, for example -10:12, Excel interprets the input as the selection of lines 10-12, and not as a time. Can you help me solve this problem?

1 Reply
Excel cannot work with negative times unless you change the file's date system to 1904. But that has quite some negative implications. Better to just enter positive times and negative times in a separate column so you can act accordingly by adding values in the pos column and subtracting in the neg column.