# Time & Date Calculator — Perform calculations with time

> Calculate time durations, including time zones and DST, with export options. (iPhone/iPad app by timeanddate.com.)

- Source: https://appshunter.io/ios/app/time-and-date-calculator/id1160778512 (this page in markdown: same URL + `.md`)
- Developer: [timeanddate.com](https://appshunter.io/developer/348529057)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 3.40/5 from 68 App Store ratings · 77 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 10 MB
- Languages: American English
- Released: 2017-04-18
- Data updated: 2026-08-27
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/time-and-date-calculator/id1160778512/reviews.md

## What is Time & Date Calculator?

• Include time of day to calculate the exact duration down to the second.
• Repeat functionality: make multiple calculations at the touch of a button.
• Include locations to calculate a duration across time zones and handle DST changes.
• See your results in alternative time units, i.e. the total number of seconds.
• Export and share results.
• Year range: 1-3999.

Developed by timeanddate.com, the number one online provider of accurate and reliable time and date related information worldwide. The free version of the app is funded by advertising. The upgrade removes advertising via an in-app purchase.

## Key features

- Calculate time duration to the second
- Cross time zone calculations with DST
- View results in alternative time units
- Repeat calculation functionality
- Export and share results
- Supports years 1-3999

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove advertising | $2.99 | one-time |


## What do users think of Time & Date Calculator?

Overall sentiment: mixed

**Pros**

- 👍 Simple and easy to use
- ✅ Does what it says it does
- 🚀 Fast and efficient
- 👌 Great for date calculations
- ✨ Useful for medication tracking
- 🌟 Powerful online version

**Cons**

- 🐛 App crashes frequently
- ❌ Settings toggles not working
- 🚫 Missing website features
- ⏳ Outdated app
- 💸 Expensive for limited features
- 📉 Poor UI design

**Commonly reported bugs**

- Time function no longer works
- Time input function stopped working
- App won't let you change time from 00:00
- Ability to select certain time doesn't work
- None of the toggle options work in settings
- Tab button to include location won't work
- Unable to add time (keypad/keyboard not appearing)
- App crashes on date pick
- App crashes since last update
- App crashes when trying to change clock
- App crashes when trying to set time (hour)
- Search option doesn't display character input
- App does not calculate leap years correctly
- Purchases not restoring
- Ads not removed after purchase
- App crashes on launch
- Cannot do start dates earlier than year 2000
- Time range too short (only from 2000 onwards)

**Most requested features**

- Add months to alternative time units
- Include end date in calculation
- Calculate date intervals (add/subtract days, weeks, months)
- Add 'now' button for current time
- Include full website features
- Add option to exclude weekends/holidays
- Add option to count only workdays
- Add week number calculation
- Add ability to track multiple dates
- Add option to save queries
- Allow calculations before year 2000
- Add seconds to time calculations
- Add ability to add/subtract time increments
- Add ability to add/subtract time via expression
- Add dark mode
- Add more themes
- Allow multiple calculators running

## Recent user reviews (10 of 77)

All indexed reviews: https://appshunter.io/ios/app/time-and-date-calculator/id1160778512/reviews.md

### 4/5 — Very useful - would love to be able to limit to weekdays

*2026-07-20*

Super easy way to calculate the countdown to your big day.  Or between two days. 

Days, weeks, even hours!  Would love to be able to have it count just weekdays.  Though easy to get there from the count of weeks.

### 1/5 — The “time”function no longer works.

*2026-04-18, version 1.1.0*

This app doesn’t function properly. This is 2026. The app has not been updated since 2020.

### 4/5 — Please Add Months

*2026-02-12*

Surprisingly, I use this app quite often. It helps me out when needed. The 1 thing I am requesting is:  PLEASE ADD MONTHS TO THE ALTERNATIVE TIME UNITS.
Why don’t you have this?

### 5/5 — To be honest

*2025-05-09*

It work perfectly

### 3/5 — Updated review, late 2024

*2024-12-24, version 1.1.0*

I have happily used the online version of timeanddate.com for many years and it is very powerful. This app was useful a few years ago, though very limited. It hasn’t been updated in several years.

### 3/5 — Meh. Lame one trick pony.

*2024-12-12*

No option to include end date in calculation. 
Can't calculate date intervals (add or subtract number off days, weeks or months from start date. 
Website it's based on is much better, more complete.

### 5/5 — Exactly as shown

*2024-09-25*

Does what it says it does. It is perfect. Have been using it for a couple of years.

### 2/5 — Deleting and finding another date/time calculator

*2024-06-09*

This app used to work pretty good, and all the functionality was solid. But it seems like different functions just randomly quit working in an unpredictable manner. For example: here lately, the time input function just stopped working. If you select “include time” in the start/end date calculator, the app won’t let you change the time from 00:00. It’s just stuck there. So if I wanted to see how many days it is from one date at 05:00 to another date at 13:00, I’m out of luck.
 I tried closing the app out and restarting it, restarting my iPhone, and then even deleting and reinstalling the app, and nothing worked to fix this issue. The ability to select a certain time doesn’t work in the to/from date calculator or the add/subtract date calculator. I’ll be finding another date calculator app now. 
This is especially frustrating because I had purchased the upgraded add free version, and still continued to have this issue.

### 3/5 — Missing an obvious button

*2023-08-22*

Why wouldn’t you include a button labeled “now”? 

I downloaded this app because was frustrated others didn’t use 24 hour time, but unlike the wonderful website, I have to manually enter the current time of day. Why make me scroll to “20:43”?

### 1/5 — Gelddruck Maschine

*2023-07-07*

Selbst nach dem Kauf der App, ist eine Anpassung in den Settings nicht möglich.

## Frequently asked questions about Time & Date Calculator

### What does the Time & Date Calculator app do?

This app allows you to perform precise calculations with time and dates. You can calculate the exact duration between two times, down to the second, and even account for differences across time zones, including Daylight Saving Time (DST) changes.

### What are the key features of the Time & Date Calculator?

Key features include calculating durations to the second, handling time zone differences and DST, displaying results in alternative units like total seconds, repeating calculations easily, and exporting/sharing results. It also supports a wide year range from 1 to 3999.

### Is the Time & Date Calculator app free to use?

The app offers a free version that is funded by advertising. Users can remove these advertisements through an in-app purchase, upgrading to an ad-free experience.

### Who would benefit from using this time calculation app?

This app is ideal for anyone who needs to accurately calculate time differences, such as project managers, travelers, students, or professionals working across different regions. It's particularly useful for tasks requiring precise time durations and time zone awareness.

## Version history (last 5 releases)

### 1.1.0 — 2020-10-12

Bug Fixes, iOS 14 updates and new databases for everyone!

### 1.0.15 — 2020-06-03

• Fixed bug when selecting start time
• Updated place database

### 1.0.14 — 2020-02-28

• Fixed bug when selecting start time
• Updated place database

### 1.0.13 — 2020-02-27

• Fixed set Start Date bug
• Updated place database

### 1.0.12 — 2020-01-05

• Fixed colouring bug in the segmented control on the add/subtract calculator

## Apps similar to Time & Date Calculator

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Time Calculator - Work Hours](https://appshunter.io/ios/app/time-calculator-work-hours/id565039079) | 4.7 (2,819) | Free | Utilities |
| [Date and Time Calculator](https://appshunter.io/ios/app/date-and-time-calculator/id552798167) | 4.7 (9,733) | Free | Utilities |
| [Date and Time Calculator Pro](https://appshunter.io/ios/app/date-and-time-calculator-pro/id582268389) | 4.8 (947) | $0.99 | Utilities |
| [Date & Time Calculator +](https://appshunter.io/ios/app/date-and-time-calculator-plus/id1606610480) | 4.6 (112) | $0.99 | Utilities |
| [Hours Tracker: Time Calculator](https://appshunter.io/ios/app/hours-tracker-time-calculator/id1468092377) | 4.7 (80,581) | Free | Utilities |
| [Countdown](https://appshunter.io/ios/app/countdown/id1403367428) | 4.8 (183,403) | Free | Utilities |

## More apps by timeanddate.com

- [Countdown by timeanddate.com](https://appshunter.io/ios/app/countdown-by-timeanddatecom/id348529054)
- [Meeting Planner by timeanddate](https://appshunter.io/ios/app/meeting-planner-by-timeanddate/id400899317)
- [World Clock – Time Zones](https://appshunter.io/ios/app/world-clock-time-zones/id403693694)
- [World Clock by timeanddate.com](https://appshunter.io/ios/app/world-clock-by-timeanddatecom/id959962122)

All apps by timeanddate.com: https://appshunter.io/developer/348529057

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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 2026-08-27.*