Introducing DateTimeWiz -
A simple and user-friendly time calculator.
DateTimeWiz is available for both a Macintosh running MacOS System 13 and any iOS Device (iPhones, iPads and iPods) running iOS 15.6 or newer.
Above you see the Setup on the Mac:
Use it to select all the presets you want.
Choose a special Calendar or calculation Reference.
Set the Format of the Date and the Time input and displayed in.
All the calculations like adding, subtracting and differing are on one single simple Window.
Enter a date or time above in the first field, select the action you want to perform and simply click Calculate.
The result will displayed in the last field and can be copied from there using the adjacent button with the icon.
Using the Icon you can paste any new Date Time as a predefined string or even pur Seconds into the calculator. You may use the Checkbox to convert Seconds to a valid Date and Time too,