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Date Time Calc is a small utility able to calculate future and past dates using a given time interval from an assigned date 'Date Guess' and also 'Date Difference' between dates (even with precision to hours, minutes, seconds).

Date Time Calc is intended for users needing to calculate expected dates after a specific number of days as in a typical business use (example of periods often used in business: 15, 30, 60, 90, 120 or 150 days) or to know the exact time interval between two specific dates and time 'Time difference' often needed in technical fields or for business contracts.


What's New

Version 2.1:

Note: Now requires OS X 10.10 or later

  • Log View inside the main window
  • Improved result string
  • Now app closes closing last window
  • Updated layout
  • Various bug fix
  • Optimized for OS X 10.11 El Capitan


  • OS X 10.10 or later

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Current Version (2.x)


Downloads 900
Version Downloads 18
License Commercial
Date 15 Apr 2016
Platform Intel 64 / OS X
Price $4.99
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