Time Jump - Date Calculator

Time Jump - Date Calculator

With side-by-side calendars!

5 ratings
10 reviews
$7.99

Details

  • Released
  • Updated
  • April 15, 2015
  • July 9, 2026

Features

Time Jump - Date Calculator screenshot #1 for iPhone
Time Jump - Date Calculator screenshot #2 for iPhone
Time Jump - Date Calculator screenshot #3 for iPhone
Time Jump - Date Calculator screenshot #4 for iPhone
Time Jump - Date Calculator screenshot #5 for iPhone
Time Jump - Date Calculator screenshot #6 for iPhone
Time Jump - Date Calculator screenshot #7 for iPhone
Time Jump - Date Calculator screenshot #8 for iPhone
Time Jump - Date Calculator screenshot #9 for iPhone
Time Jump - Date Calculator screenshot #10 for iPhone
iphone
ipad
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About

Easily calculate the difference between dates, including business days, with side-by-side calendars. Add or subtract time periods and integrate with your device's calendar for event viewing and management.

Calculate days between dates
Business day calculations
Side-by-side calendar view
Add/subtract time periods
Integrates with device calendar
Customizable holidays and days off
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What's New in Time Jump

3.14.0

July 9, 2026

We took advantage of the excessive heat at Time Theory World Headquarters to get some code cleaned up ( in other words, we hid out in the AC for a couple of days ). Primarily, we moved the What's New section in Settings to a more prominent place. As always, Thank You for being a Time Jump user !

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User reviews

Very Convenient

I tried a few date calculators before deciding on this one. Very intuitive and convenient. The layout is logical and the ability to calculate using days, business days, weeks, etc. is very handy. The developer is very responsive. Well worth the money.

Wow

I need to be able to calculate dates using different criteria (i.e. days, business days, business days excluding holidays). To date (pun intended) none of the other date calculators I’ve tried have come even close to the functions and simplicity of this app. This is a fantastic app that is a bargain at the price, and it really should be at the top of the app store ratings.
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Works great

Functionality is unexpectedly useful during a pandemic to figure out how many days since I last saw my elderly mother when we are chatting on the phone. It doesn’t know how many days until we have a vaccine though.

Auditor

The app is a very practical tool for any personal or professional project management activity. I use it while planning and managing internal audits at a large multinational bank. I also refer to it when planning or analyzing simpler personal activities such as travel or calculating tax days in a state/country. Its clean/efficient interface and effective date calander algorithm make this app super user friendly. I'm glad I got this one.
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Best Date Calculator in the market - Period

I have tested about 30 different time calculators on the App Store and none of them come even close. This application is fantastic in so many ways.

- Fantastic intuity interface
- Powerful ability to define your own working days / weekend days for counting
- Ability to integrate with your calendar to create new events (such as deadlines) and mark days as 'days off'
- Very friendly and pro-active developer willing to help you out with problems and take on new ideas for upgrades

In a nutshell, this is the best software available for date calculations and frankly this App should be at the very top of results and not at the bottom. It took me days of flipping through tons of crappy applications to find this jewel.
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FAQ

What is Time Jump used for?

Time Jump is a date calculator that helps you find the number of days between two dates, calculate future or past dates by adding/subtracting time periods, and specifically count business days. It also integrates with your device's calendar.

How does Time Jump calculate business days?

Time Jump calculates business days by excluding weekends and optionally US Federal and State holidays, which can be customized. You can also add your own personal days off to be excluded from business day calculations.

Can I see my existing calendar events in Time Jump?

Yes, with your permission, Time Jump can integrate with your iPhone/iPad calendar to display events. You can choose which calendars to view and even create or delete events directly from within the app.

What is the price of Time Jump?

Time Jump is a paid application, priced at $2.99. This one-time purchase grants you full access to all its features.

Does Time Jump have ads?

No, Time Jump is ad-free. As a paid application, it does not contain any advertisements, ensuring an uninterrupted user experience.

What devices does Time Jump support?

Time Jump is available for both iPhone and iPad devices, offering a consistent experience across Apple's mobile platforms.

How far back or forward in time can Time Jump calculate?

Time Jump supports date calculations up to 2,000 years in the past or the future, providing a wide range for your planning needs.

How often is Time Jump updated?

The latest version, 3.12.0, was released on December 4, 2024. Updates are provided regularly by the developer, Time Theory Software, to enhance functionality and reliability.