# 24-Hour Time Calculator — No more 25:00—true clock math

> Calculate and manage 24-hour time with addition, subtraction, and difference features. (iPhone/iPad app by Richard Montoya.)

- Source: https://appshunter.io/ios/app/24-hour-time-calculator/id6748953014 (this page in markdown: same URL + `.md`)
- Developer: [Richard Montoya](https://appshunter.io/developer/1762752434)
- Category: Productivity, Utilities
- Price: $2.99
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 18.5 · 0 MB
- Languages: American English
- Released: 2025-07-23
- Data updated: 2026-08-01
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/24-hour-time-calculator/id6748953014/reviews.md

## What is 24?

24-Hour Time Calculator makes adding, subtracting, and scoring 24-hour (military) time fast and effortless.

Whether you're a pilot, dispatcher, shift worker, or anyone managing schedules and logs, this app is designed for you. Enter start and end times, calculate time differences, or quickly solve 24-hour time math for any need.

Key Features:
• Instantly add or subtract 24-hour (military) time
• Quickly calculate time differences for shifts, schedules, or logs
• Persistent Time: Easily save and reuse a constant value - no more retyping the same number again and again
• Automatic Clock Wrapping: Results always stay within 24-hour format - no more confusing answers like "25:00"
• Simple, modern interface - no clutter, no ads
• Designed for aviation, logistics, transportation, shift work, and anyone who needs accurate time math
• Works great with typical flight plan and scheduling formats

-----

How It Works:
1. Enter your starting time.
   (Example: "13:15" for 1:15 PM.)
2. Add or subtract the desired value.
   (Example: add "2:50" to get "16:05".)
3. Use the persistent time feature to save a commonly used number (like an offset or fixed block time), so you never have to re-enter it.
4. All results are automatically wrapped to the 24-hour clock - no more odd answers like "25:00".

-----

Stop struggling with mental math or spreadsheets - 24-Hour Time Calculator helps you get the job done with confidence, every time.

## Key features

- Add/subtract 24-hour time
- Calculate time differences
- Persistent time feature
- Automatic clock wrapping
- Simple, modern interface


## Frequently asked questions about 24

### What is 24-Hour Time Calculator?

24-Hour Time Calculator is a productivity tool that allows users to quickly add, subtract, and calculate time differences using the 24-hour (military) time format. It is designed to simplify complex time calculations for professionals.

### How does 24-Hour Time Calculator handle results over 24 hours?

The app features automatic clock wrapping, ensuring all results stay within the 24-hour format. This means you will never see confusing answers like '25:00'.

### Can I save frequently used times in 24-Hour Time Calculator?

Yes, the 'Persistent Time' feature allows you to easily save and reuse a constant time value, such as an offset or fixed block time, eliminating the need for repeated entry.

### What platforms is 24-Hour Time Calculator available on?

24-Hour Time Calculator is available for iPhone and iPad devices.

### What is the price of 24-Hour Time Calculator?

24-Hour Time Calculator is a paid app priced at $2.99.

### Does 24-Hour Time Calculator have ads?

No, 24-Hour Time Calculator is ad-free, offering a clean and uncluttered user experience.

### What is the age rating for 24-Hour Time Calculator?

The app has an age rating of 4+, making it suitable for a wide range of users.

### How often is 24-Hour Time Calculator updated?

The app was last updated on July 23, 2025, with version 1.0. Future updates will likely continue to refine its functionality.

## Version history (last 1 release)

### 1.0 — 2025-07-23

No release notes.

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## More apps by Richard Montoya

- [Fuel Density Calculation](https://appshunter.io/ios/app/fuel-density-calculation/id6636469810)
- [BigFont Display](https://appshunter.io/ios/app/bigfont-display/id6788179592)

All apps by Richard Montoya: https://appshunter.io/developer/1762752434

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-01.*