I have a column with hours and minutes. Some examples below: 00:00 00:15 11:45 12:30 23:30 The format and informat of the column is $5. I need to subtract 1 hour from this column. So the result would be: 23:00 23:15 10:45 11:30 22:30 What is the easiest way of doing this? Should I be converting to time and then subtract or is there another way? Thanks in advance.
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