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[Calc] Calculating time elapsed problem [closed]

asked 2018-05-16 16:48:24 +0200

alphaniner gravatar image

I have this formula for calculating time elapsed:

=INT(G3-G2)&" days, "&HOUR(G3-G2)&" hours, "&MINUTE(G3-G2)&" min, "&SECOND(G3-G2)&" sec"

In Excel, I can paste a time such as "May 15 13:41:58" and it is automagically converted to "5/15/2018 20:30"* which is usable by the formula. In Calc, the conversion doesn't occur so the formula fails to produce a result. I'm not savvy enough with Calc or spreadsheets in general to know how to resolve this, so any input would be appreciated.

* That's what shows up in the cell; the formula box actually shows "5/15/2018 8:30:25 PM" when the cell is selected.


As a side note, I'd actually like any days to be automatically converted to hours and added to the hours total if anyone knows how that can be done.

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Closed for the following reason the question is answered, right answer was accepted by erAck
close date 2018-05-17 20:54:14.457208

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answered 2018-05-16 17:51:24 +0200

erAck gravatar image

Maybe Excel assumes the current year when pasting a long date string that lacks the year, Calc apparently doesn't. May 15, 2018 13:41:58 yields the datetime value 05/15/2018 13:41:58

To subtract two datetime values and get a result in hours,minutes,seconds simply use =G3-G2 and format it as [HH]:MM:SS or [H]" hours, "M" minutes, "S" seconds" if you wish.

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Thanks, that was indeed the issue. Knowing that I was able to use text functions in intermediate fields to shoehorn in the year, which result in a usable value:

=LEFT(G3,FIND(" ",G3,FIND(" ",G3)+1)-1)&" "&YEAR(TODAY())&" "&RIGHT(G3,LEN(G3)-FIND(" ",G3,FIND(" ",G3)+1))

Yeah, I know it's an incomprehensible mess, but I couldn't figure out how to do it with regex so... -_-

And I ended up using DAYS() and a bunch of math to simplify the elapsed time result to hours & minutes.

Thanks again.

alphaniner gravatar imagealphaniner ( 2018-05-16 21:08:20 +0200 )edit

Does that format Monthname DD HH:MM:SS have widespread use for input? Calc does accept May 15 for 05/15/2018 so maybe could be taught to accept the combined datetime form as well.

erAck gravatar imageerAck ( 2018-05-17 13:12:49 +0200 )edit

It's a timestamp in the log of a network appliance from a small company.

I suppose if there was much demand for the behaviour it would already be implemented. Anyway, I'm content with the workaround. The calculation is only for convenience anyway.

alphaniner gravatar imagealphaniner ( 2018-05-17 15:37:15 +0200 )edit

I'd submit a bug report against that "appliance", such locale dependent timestamp format is unsuitable for many purposes, it doesn't even sort correctly in a simple text based sort. An ISO 8601 based format like 2018-05-15 13:41:58 would be suitable.

erAck gravatar imageerAck ( 2018-05-17 20:53:31 +0200 )edit

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Asked: 2018-05-16 16:48:24 +0200

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Last updated: May 16