Excel stores date/time as days and fractions of a day. So a formula that should work: =ROUND((SUBSTITUTE(J1,":",".",3)-SUBSTITUTE(E1 ... ... <看更多>

For example a recorded time contains milliseconds, such as 10:33:50.235. When I type this time into a cell in Excel, the time shows as ... ... <看更多>

Calculate elapsed time in Excel, with millisecond accuracy! Use the DATETIMEDURATION formula to calculate the exact duration between two ... ... <看更多>

So much simpler: look at this answer from Excel Forum: ... Which convert the difference in Epoch milliseconds into minutes. ... <看更多>