Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Does anyone know of a time calculator for OSX?

I'm looking for a calculator that allows me to do this kind of math with times

  HH:MM:SS
----------
  01:15:58
- 00:15:00
+ 02:30:00
----------
= 03:30:58

Ofcourse the actualy calculations i'm looking to do are a little more complex and involve alot more data but basically adding and substracing is all it should do.

share|improve this question
3  
It's supposed to be 03:30:58 at the end, right? –  Daniel Beck Nov 30 '10 at 11:30
    
Depending on your use case, you might have success with time tracking software like "On The Job" or "Billings" –  Daniel Beck Nov 30 '10 at 11:31
    
+1 @Daniel yes ... thanks for pointing that out, i've been staring at these kinds of numbers all day long and missed that one, hence i'm searching for a calculator easing the job :p –  ChrisR Nov 30 '10 at 16:02
add comment

2 Answers

up vote 2 down vote accepted

Hardly a native app, but spreadsheets like OpenOffice.org Calc and Microsoft Excel might help? Just remember that the default time formats such as HH:MM:SS will show 26 hours as 02:00:00, and minus 2 hours as 22:00:00 or 10:00:00 PM. To avoid that:

Use square brackets in the format, for both the inputs and the results:[HH]:MM:SS. Then all you need is the SUM(..) function:

SUM and the correct time format in OpenOffice.org

In localized versions of OpenOffice.org you might need odd formats like [UU]:MM:SS

share|improve this answer
    
That works wonderfully well, thanks alot arjan! –  ChrisR Dec 1 '10 at 13:26
    
A, Chris, only now I see your comment, as I needed the [MM] myself and forgot its format. More important: I've thanked the alot. ;-) –  Arjan Apr 8 '12 at 10:15
add comment

Could this site be of any use to you? http://www.scottseverance.us/html/time_calculator.htm

share|improve this answer
    
Yes, i found that prior to asking this question but alas it's usability is poor and it's webbased, if possible i'd rather use a native app if there is one. –  ChrisR Nov 30 '10 at 16:00
    
@Chris, it does allow for downloading too. That would still need a browser though. In Google Chrome on Windows you could save this as an application, but on my Mac menu File » Create Application Shortcut is disabled. Still, Fluid could help. Likewise, Mozilla Prism could achieve the same for Firefox. –  Arjan Dec 1 '10 at 13:14
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.