Date.Time Calculator


You can perform calculation of Date (Time Point) and Time (Time Interval), and units conversion.

Date.Time Calculator is support the following calculation.

  • Numerical arithmetic operations (integer and decimal)
  • Four arithmetic operations of a numeric and Time (Time Interval)
  • Time and Time operations (addition, subtraction, division)
  • Time and Date (Time Point) operations (addition and subtraction)
  • Date and Date operation (the difference)
  • Time units conversion
  • Mutual conversion of POSIX Time

Date.Time Calculator is useful in such applications.

  • What is the date after 100 days from today?
  • What is the date after 32768 seconds from now?
  • When the lap time is 1 minute 32.6 seconds, what is the required time for 62 laps?
  • In addition, What is the finishing time for 62 laps from now?
  • What is the number of days until today from January 23 of this year?
  • What is the number of days of 100 000 seconds?
  • What is the date indicated by the 1234567890 seconds of POSIX Time?
  • What is the number of seconds of the POSIX Time of now?


Version: 1.2.1
Compatibility: Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
Languages: English, Japanese