This is a site of SERIOUS discussion. There is no place for joking.

>Of course. I was mostly joking. If someone were concerned with subsecond timing, I don't think they'd be doing something that took very long (ie. something that would have to run for a while and that might span midnight). So if they saw that it took -86398 seconds, they would know it was too late and that they should go to bed and try again later.
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>Joe
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>
>>You can store the datetime() and the millisecond portion of seconds(), this eliminates any rollover issues.
>>
>>>Just don't span midnight.... ;~)
>>>
>>>
>>>>If you need subsecond precision you can use seconds() in place of datetime() in Ed's code.
>>>>
>>>>>I would like to calculate processing time, which command can
>>>>>we use ? Thanks for your time