# iTimeZone — World Clock Calculator

> World clock and time zone calculator for over 93,000 cities. (iPhone/iPad app by Dave Murdock.)

- Source: https://appshunter.io/ios/app/itimezone/id284946233 (this page in markdown: same URL + `.md`)
- Developer: [Dave Murdock](https://appshunter.io/developer/284946236)
- Category: Travel, Utilities
- Price: $0.99
- Rating: 3.17/5 from 12 App Store ratings · 90 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 73 MB
- Languages: English
- Released: 2019-02-11
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/itimezone/id284946233/reviews.md

## What is iTimeZone?

iTimeZone is a World Clocks Calculator. You choose any past, present, or future date & time for 93,000+ cities, iTimeZone does the tricky time zone math using all daylight savings time transitions. 

Scheduling meetings or knowing the time when landing in Singapore is incredibly easy. 

Previously Featured: 
- In the App Store's New and Noteworthy section 
- At Apple Retail Stores 
- At Apple's World Wide Developer Conference (WWDC) 2009 

FEATURES: 
- 93,000+ Cities. Included are most cities with a population greater than 5,000, including Greenwich, England for GMT/UTC time. 
- Location, Location, Location. iTimeZone lists cities near your location. 
- Maps in the App. See any city on a map in iTimeZone or view in the Maps app. 
- Make Any City the Current City. Double-tap any city, drag a city to the top, or tap a button in City Info. 
- No Network Required for Time Calculations. No Wi-Fi, no mobile signal, no problem. iTimeZone has all its' city time data built-in, great for iPod touch or iPhone owners in areas with spotty reception. 
- City Info. See more info about any selected city. 
- Quickly see day or night indicators for every city. 
- Now. Quickly switch to the current date & time. 
- Country Flags. Easily identify a cities' country.
- iOS 4 Multitasking Support 
- iPhone 4 Retina Display Graphics

## Key features

- 93,000+ cities worldwide
- Daylight saving time transitions
- Offline time calculations
- City location mapping
- Day/night indicators
- Country flags

## What do users think of iTimeZone?

Overall sentiment: mixed

**Pros**

- 👍 Intuitive and easy-to-use interface
- ⏰ Converts future times across multiple time zones simultaneously
- 🌍 Helpful for scheduling international meetings and calls
- 📅 Accurately handles daylight savings time
- 🎯 Allows setting custom date/time to see effects across zones
- 🚀 Quick and efficient for frequent travelers
- 🔄 Dynamic updates when adjusting time wheels
- 📍 Shows day/date changes across international dateline
- 💬 Responsive developer support
- 🎨 Clean, simple design without over-engineering

**Cons**

- 🐛 Frequent crashes and app freezes
- 🐛 Incorrect time and date calculations
- 🐛 Swaps cities around unexpectedly
- 🐛 Deletes or adds cities from list without user action
- ❌ Missing major cities in database
- ❌ Weak city search functionality
- ❌ Incomplete city database (gaps in coverage)
- 📱 Outdated UI and graphics
- 🔧 Difficult to change default/home city
- ⚠️ Daylight savings time errors in some locations
- 📊 Time selector wheel takes up too much screen space
- 🔍 Cannot search by time zone abbreviations (GMT, PST, etc.)
- 💰 Expensive for basic functionality available in iOS
- 🔄 Lacks bidirectional time conversion
- ⚙️ Requires manual workarounds for basic functions

**Commonly reported bugs**

- App crashes on startup after updates
- Incorrect day/date calculations across international dateline
- Time wheel swaps cities around when adjusting
- Cities deleted or added from list unexpectedly
- Search function returns 'no cities found' when search button pressed
- Location detection stuck on 'Updating location'
- Incorrect daylight savings time handling in some cities
- Yesterday/Tomorrow tags displaying incorrectly
- App incompatible with older iOS versions (iPhone 3GS)
- Time display shows wrong day when converting across dateline
- Reordering cities doesn't work consistently
- Cannot find major cities (Los Angeles, Paris, London, New York, Jacksonville, Orlando)

**Most requested features**

- Add more cities to database (Beijing, New Delhi, Mumbai, Rome, Hanoi, Perth, Sydney, Tunis, Grenada)
- Support for time zone abbreviations (GMT, MST, PST, AEST)
- Ability to change default/home city from within app
- Bidirectional time conversion (set time in any city, not just home)
- Email meeting time details directly from app
- Meeting planner feature for multiple time zones
- Reduce time selector wheel size to show more cities
- GPS-based automatic time zone detection
- Show country flags on main screen
- Help/tutorial documentation within app
- 12/24 hour clock format option
- Display time zone information on city list
- Retina display support
- iPad compatibility
- Quick time lookup without adding to main list
- Ability to temporarily hide time selector wheel

## Recent user reviews (10 of 90)

All indexed reviews: https://appshunter.io/ios/app/itimezone/id284946233/reviews.md

### 5/5 — Helpful tool

*2021-07-06*

I have been using iTimezone for a couple of years now and the latest version is still extremely helpful. I travel around the world for work and being able to convert a future time and date in one time zone into what time and date it will be another time zone or my home time zone is invaluable. I have found every time zone I have needed by entering the city I am in or a nearby city. It is particularly helpful in helping determine what day it will be when converting time. This comes in very handy when the international dateline is part of your travels and you can easily be off my an entire day if you miscalculate. If you ever have travel fatigue, you know that things like calculating time can get challenging and this app makes it simple.

July 2021 update:
Still glad to be using this app for my work related time conversions.

### 1/5 — Bad app

*2021-06-23, version 3.0*

This app doesn’t work. All I could do is compare current time with another city. No need for this as it is a standard widget with the iphone. There is no way to back test time as advertised.

### 5/5 — Best of the lot

*2019-10-15, version 3.0*

I used to love this app, and seemed to have lost it a while ago but this new version I just found works a treat.  It’s the black belt of time zone apps. Bravo.

### 1/5 — Doesn’t work

*2018-12-06*

Major glitches with this version. This app used to work well, but now it is useless. For example, when I go to put in the time to convert, it swaps the cities around, deletes cities from my list, and add ones that weren’t there.

### 4/5 — please update

*2018-03-23*

please update app

### 5/5 — Cant wait for ios11 update!

*2017-09-25*

I have used iTimeZone for five years or more.  I use it regularly to plan meetings with colleagues in multiple time zones across the world.  What time can i plan a meeting that is during business hours in multiple time zones?  iTimeZone helps you do this.  If you are flying to another city, you can set that city as your current city then enter the time you land and immediately see what time that will translate to in other time zones across the globe.  ESSENTIAL!!!

### 1/5 — Not worth the money. Total rip off

*2017-01-17, version 2.0.3*

Does not do anything that your iPhone doesn't do.

### 5/5 — It's old but good

*2014-05-30, version 2.0.3*

iTimeZone was last updated in 2011, so surely there are newer apps that do it better? Well, no. Time and again I find myself going "back" to this app to find out when an overseas online event is happening in my country. iTimeZone is by far the quickest for that task. You simply tap the city in your list of favourites, make it the Home City, and adjust the date/time for the Home City. Against your own city you'll see the corresponding date/time. Tapping the "Now" button gives an easy to read reference for current times at all your Favourite cities. It would be nice to get a Retina update, but this looks fine on both iPhone and iPad. Despite its age, in my book it's still worthy of 5 stars.

### 1/5 — App is a rip-off

*2014-05-30*

The world clock calculator that is displayed in the photos is not included. This is a basic reproduction of the clock function already included in iOS.
Don't waste your money.

### 4/5 — support iPhone 5 screen soon?

*2013-05-15*

support iPhone 5 screen soon? when??

## Frequently asked questions about iTimeZone

### What does iTimeZone do?

iTimeZone is a world clock calculator that helps you determine time zone differences for any past, present, or future date and time. It supports over 93,000 cities and automatically accounts for daylight saving time transitions.

### How does iTimeZone handle time zone calculations?

The app uses built-in city time data to perform accurate time zone calculations, including all daylight saving time transitions. This means you don't need an internet connection for the calculations to work.

### Is iTimeZone free to use?

Based on the provided information, iTimeZone is a paid application. There are no mentions of in-app purchases or advertisements, suggesting a one-time purchase model.

### What are the main features of iTimeZone?

Key features include support for over 93,000 cities, automatic daylight saving time adjustments, offline calculation capabilities, city mapping, day/night indicators, and country flags for easy identification.

### Who would benefit from using iTimeZone?

This app is ideal for frequent travelers, business professionals who schedule international meetings, or anyone who needs to quickly and accurately know the time in different parts of the world.

## Version history (last 5 releases)

### 4.0 — 2021-07-06

- iPadOS is now supported!
- Search for countries and see their cities, biggest to smallest.
- Everyone still likes bug fixes and performance improvements, right?

### 3.0 — 2018-11-19

- All New Design
- Use Groups to Organize Cities
- iOS 11 or later compatible

### 2.0.3 — 2011-10-05

2.0.3
- Works around iOS 4.x time zone bug for Chile and daylight savings time
- Removes support for iPhone, iPhone 3G, iPod touch 1G,  and iPod touch 2G devices

### 2.0.2 — 2011-03-28

2.0.2
- Fixes iPhone 3G crash at launch by using older development tools

2.0.1
- Fixed bug searching on city names with non-ASCII characters.

2.0
- iOS 4 Multitasking Support
- iPhone 4 Retina Display Graphics
- New User Interface. Date & time picker now slides on and off screen like a keyboard. Changing the current city is super simple, just tap edit and drag.
- 400% More Cities. More than 93,000+ cities now available.
- Fastest City Name Searches Ever. 
- Improved New User Experience. Tips assist users with setup.
- Improved location detection. People in large cities should always have at least one city found.

Bugs Fixed:
- Searching for cities with commas or spaces in the name will now find cities.
- Date & time wheels will show names instead of numbers on iOS 4.2.x

Other:
- iOS 3.1.x, 2.x support removed
- iTimeZone 1.0 upgrade functionality removed

### 2.0.1 — 2011-03-18

2.0.1
- Fixed bug searching on city names with non-ASCII characters.

2.0
- iOS 4 Multitasking Support
- iPhone 4 Retina Display Graphics
- New User Interface. Date & time picker now slides on and off screen like a keyboard. Changing the current city is super simple, just tap edit and drag.
- 400% More Cities. More than 93,000+ cities now available.
- Fastest City Name Searches Ever. 
- Improved New User Experience. Tips assist users with setup.
- Improved location detection. People in large cities should always have at least one city found.

Bugs Fixed:
- Searching for cities with commas or spaces in the name will now find cities.
- Date & time wheels will show names instead of numbers on iOS 4.2.x

Other:
- iOS 3.1.x, 2.x support removed
- iTimeZone 1.0 upgrade functionality removed

## Apps similar to iTimeZone

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [World Clock Time Zone Widgets](https://appshunter.io/ios/app/world-clock-time-zone-widgets/id956377119) | 4.7 (21,236) | Free | Travel |
| [GlobeTempus Convert Time Zone](https://appshunter.io/ios/app/globetempus-convert-time-zone/id790181049) | 4.7 (1,282) | Free | Travel |
| [World Clock by Time Intersect](https://appshunter.io/ios/app/world-clock-by-time-intersect/id1180469350) | 5.0 (3) | $6.99 | Travel |
| [World Clock Lite](https://appshunter.io/ios/app/world-clock-lite/id1430056999) | 4.8 (33) | Free | Travel |
| [World Clock - Timezones Widget](https://appshunter.io/ios/app/world-clock-timezones-widget/id1455516286) | 3.8 (12) | Free | Travel |
| [Jetlag - Travel & Timezone](https://appshunter.io/ios/app/jetlag-travel-and-timezone/id6444663705) | 4.0 (35) | Free | Travel |

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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 2026-06-10.*