# Time Zone Calculator > App to view and manage multiple time zones simultaneously. (iPhone/iPad app by Donald Wilson.) - Source: https://appshunter.io/ios/app/time-zone-calculator/id1001840533 (this page in markdown: same URL + `.md`) - Developer: [Donald Wilson](https://appshunter.io/developer/1001831202) - Category: Business, Productivity - Price: Free - Rating: 3.20/5 from 6 App Store ratings · 6 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 8 MB - Languages: American English - Released: 2015-06-30 - Data updated: 2026-06-11 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/time-zone-calculator/id1001840533/reviews.md ## What is Time Zone Calculator? This is a simple app that allows users to see what time it is (or will be) across multiple timezones. Absolutely essential for arranging conference calls across multiple time zones. The screen displays four time pickers - the top one is the user's local time and the other three display the time for user selected time zones. Changing the time in any of the time zones automatically sets the time in all the others. The top city is always set to the phone's local time zone. The user can select the other cities / time zones by pressing the name of the city and selecting a new city / zone in the search dialog. Alternatively the Settings button will take the use to the standard iPhone settings screen.
 The "Now" button sets the time pickers to the current time and also updates any changes to the user selected time zones in the iPhone app settings. ## Key features - Multiple time zone display - Automatic time synchronization - Local time display - Customizable time zone selection - Quick 'Now' button ## Recent user reviews (6 of 6) All indexed reviews: https://appshunter.io/ios/app/time-zone-calculator/id1001840533/reviews.md ### 2/5 — Good start but missing important cities *2022-02-03* I think this app could be useful to people who have to connect with others who are overseas. However, the app has limited cities (and no ability to custom add your own) and as a result is not useful. For example, no Mumbai or New Delhi, but 12 cities in Antarctica. No kidding. If you want to make the app more useful, download a list of largest cities (say over 1 million population) and at least ensure they are all in there. ### 5/5 — Thank you! *2020-08-21* Just what I needed! Only wish I could select 5 or 6 cities at once. But this app outperforms anything else I have found. ### 1/5 — Doesn’t work *2020-05-11* Times don’t show, thus app is useless as is. ### 3/5 — Stopped Working *2020-05-07* It did work great, but now I only see the locations. I don’t see any times displayed. ### 5/5 — Useful *2017-05-01* I had to debug an application at work which was working with multiple time zones. This application was a big aid. ### 4/5 — Very useful (and tidy) helper app *2015-11-20* A very helpful and useful app to quickly solve time zone "what ifs" for scheduling worldwide meetings. This is a very light and sleek app that takes minimal space, has a clean uncluttered interface, and free from add-ins. When selecting time, the wheels are a bit close together for my thick fingers, and you can't cancel out of the time zone selection screen. Otherwise five stars. ## Frequently asked questions about Time Zone Calculator ### What is the Time Zone Calculator app? Time Zone Calculator is a free app designed to help users easily view and manage times across multiple global time zones simultaneously. It's particularly useful for scheduling meetings and calls across different regions. ### How does Time Zone Calculator handle time adjustments? When you adjust the time in one zone, Time Zone Calculator automatically updates the time in all other selected zones. The top time picker always reflects your local time. ### Can I customize the time zones displayed in Time Zone Calculator? Yes, you can select your desired time zones by pressing the city name and choosing a new one from the search dialog. The app allows for user-selected time zones beyond your local one. ### Is Time Zone Calculator available on Android devices? Based on the provided data, Time Zone Calculator is designed for Apple devices, specifically supporting iPhone, iPad, and iPod. It is not indicated to be available on Android. ### How often is Time Zone Calculator updated? The latest version of Time Zone Calculator is 1.55, and it was last updated on February 6, 2021. This indicates a past update frequency, though current update cadence is not specified. ### What is the user rating for Time Zone Calculator? Time Zone Calculator has a rating of 3.2 stars based on 6 ratings. This suggests a mixed user reception, with some users finding it useful and others potentially experiencing issues. ### Does Time Zone Calculator have ads? No, Time Zone Calculator does not contain advertisements. The app is free to download and use without any ad interruptions. ### What is the age rating for Time Zone Calculator? Time Zone Calculator has an age rating of 4+. This means it is considered suitable for children aged 4 and older, with no mature content. ## Version history (last 5 releases) ### 1.55 — 2021-02-06 Minor updates ### 1.54 — 2020-05-22 Even better navigation too allow. you to select cities more easily ### 1.53 — 2020-04-30 Streamlined navigation ### 1.52 — 2017-10-10 Updated for now IoS (and Swift 4) ### 1.51 — 2016-09-20 IOS 10 and Swift 3 compatibility ## Apps similar to Time Zone Calculator | App | Rating | Price | Category | | --- | --- | --- | --- | | [World Clock - Local Time](https://appshunter.io/ios/app/world-clock-local-time/id1024201761) | 4.4 (1,305) | Free | Business | | [Fincore Go](https://appshunter.io/ios/app/fincore-go/id6451186057) | — | Free | Business | | [CleanWave Now](https://appshunter.io/ios/app/cleanwave-now/id6499514022) | — | Free | Business | ## More apps by Donald Wilson - [Pair Play](https://appshunter.io/ios/app/pair-play/id1073305436) All apps by Donald Wilson: https://appshunter.io/developer/1001831202 --- *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 2026-06-11.*