Question: how to subtract minutes and seconds in excel?
Answer: Add over 24 hours: Start time + (N/24) Add over 60 minutes: Start time + (N/1440) Add over 60 seconds: Start time + (N/86400) Subtract over 24 hours: Start time - (N/24) Subtract over 60 minutes: Start time - (N/1440) Subtract over 60 seconds: