World Timezone Calendar12.0 - App Store
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Publisher Description
Coordinate global meetings, calls, and events without the timezone math. Standard world clocks only tell you what time it is right now. World Calendar goes further: it’s a powerful timezone converter and international meeting planner that lets you look into the future to find the perfect time for everyone.
Whether you are scheduling a global team sync, planning an international trip, or calling family overseas, World Calendar integrates directly with your iOS Calendar to make cross-timezone scheduling effortless.
CROSS-TIMEZONE SCHEDULING
Compare multiple timezones side-by-side to instantly pinpoint the ideal meeting time. Tap anywhere to set a target time, and tap twice to seamlessly create an event directly in your calendar.
VIEW YOUR CALENDAR IN MULTIPLE TIMEZONES
World Calendar displays your existing events across all your selected timezones. Create, edit, and share events with a single tap, ensuring your global schedule is always perfectly aligned.
KEY FEATURES:
. Time Travel: Scroll into the future to plan days, weeks, or months ahead.
. No Limits: Add and compare as many timezones as you need.
. Day/Night Indicators: Instantly see if your contact is awake or asleep.
. Home Screen Widget: Check your favorite timezones at a glance without unlocking your device.
. Watch Widget and App: Put your recently selected timezones on your wrist
. Easy Search: Find locations by city name, timezone abbreviation (e.g., EST, GMT), or UTC offset.
. Global Sharing: Send event invites to other users that automatically adapt to their local timezone.
. DST Accuracy: Fully automatic adjustments for daylight saving time changes globally.
. Nautical Time Zones: Full support for standard UTC offsets without DST adjustments.
. Landscape View: Turn your device for a wider, comprehensive timeline view.
Version History - Watch app and watch widget: view your timezones on your watch!
- Improved 24h/12h time format support 12.0 Mar 28 - Improved widget layout on some devices 11.2 12/17/2025 - Improved app resizing for iPadOS 26 11.1 11/16/2025 - Refreshed design with Liquid Glass on iOS 26 and iPadOS 26 11.0 09/17/2025 - Home screen widget
- Darker dark mode 10.0 06/23/2025 - Dark mode icon 9.3 01/26/2025 - More localizations
- New Shortcuts 9.2 05/26/2024 - Bug fixes 9.1 02/10/2024 - New name, same great app
- Dark Mode 9.0 01/28/2024 Full Chinese (Simplified) user interface localization.
Calendar view localization for nearly all iOS locales as well, meaning that local representations of times and dates are shown in the calendar view. As before, you can add timezone cities in many different foreign languages. Together these two features mean that while the app's user interface language may not be available in your language, once you add your timezones, you can still enjoy a fully localized experience. 8.0 08/11/2018 Fixed bug that made it hard to close dialogs on the iPhone X.
New in 7.1: Timezone Calendar now supports nautical time zones with fixed offsets such as UTC+1000 and UTC-0700. Unlike terrestrial city-reference time zones, these offset-based ones observe no daylight savings or other changes, so UTC+1000 will always be UTC+1000. Useful if you're keeping track of time independently like when sailing the high seas. To use this feature, search by "UTC+" or "UTC-" to display the list of hourly offsets. As is the case throughout the app, "GMT" can be used instead of "UTC", should you prefer. 7.2 07/07/2018 Now supports nautical time zones with fixed offsets such as UTC+1000 and UTC-0700. Unlike terrestrial city-reference time zones, these offset-based ones observe no daylight savings or other changes, so UTC+1000 will always be UTC+1000. Useful if you're keeping track of time independently like when sailing the high seas.
To use this feature, search by "UTC+" or "UTC-" to display the list of hourly offsets. As is the case throughout the app, "GMT" can be used instead of "UTC", should you prefer.
Also included is "Anywhere on Earth (AoE)", an alias for the UTC-1200 offset, that is used by some standards bodies for ballot deadlines. 7.1 06/30/2018 Support for iOS 11.
Added ability to select which calendars to display. 7.0 10/01/2017 New style for calendar events.
iOS 10 Widget support. 6.0 12/03/2016 Fixed timezone search bug on iPad. 5.3 07/06/2016 Added an optional History feature, to automatically display previously visited timezones.
Great when you have cities A & B on the list, then you travel from A to B. 5.2 04/19/2016 • quick action shortcuts
• bugfixes 5.1 11/07/2015 • Today view extension 5.0 10/25/2015 • Better text readability for busy calendars
• Bugfixes 4.4 02/28/2015 Select and deselect active timezones 4.3 11/09/2014 Support for the iPhone 6 and iPhone 6 Plus 4.2 10/26/2014 iOS 8 Support 4.1 09/19/2014 • Added ability to rename Timezones.
• Cities are now searchable by alternate spellings.
• Better support for GMT timezone. 4.0 09/13/2014 • Displays the current time for each timezone, in addition to the red line time indicator.
• 24 hour time supported, the app will honor your device's setting, and you can override it in TZ Compare's settings.
Shout-outs: Fiona and Ken for prodding me to display the current time. Neiio for the kind words, and suggesting 24-hour time support. 3.0 05/15/2014 New: "Wind-forward" feature allows you to pick any time in the future (or past) and see timezone calculations.
This was our no.1 user requested feature. We hope you enjoy!
The word toolbar buttons have all been replaced with icons too, hope you like them. 2.1 05/05/2014
About World Timezone Calendar
The company that develops World Timezone Calendar is Geospike Pty Ltd. The latest version released by its developer is 12.0.
To install World Timezone Calendar on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-15 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the World Timezone Calendar as malware if the download link is broken.
How to install World Timezone Calendar on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the World Timezone Calendar is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After World Timezone Calendar is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 12.0
posted on 2026-10-15
Version History - Watch app and watch widget: view your timezones on your watch!
- Improved 24h/12h time format support 12.0 Mar 28 - Improved widget layout on some devices 11.2 12/17/2025 - Improved app resizing for iPadOS 26 11.1 11/16/2025 - Refreshed design with Liquid Glass on iOS 26 and iPadOS 26 11.0 09/17/2025 - Home screen widget
- Darker dark mode 10.0 06/23/2025 - Dark mode icon 9.3 01/26/2025 - More localizations
- New Shortcuts 9.2 05/26/2024 - Bug fixes 9.1 02/10/2024 - New name, same great app
- Dark Mode 9.0 01/28/2024 Full Chinese (Simplified) user interface localization.
Calendar view localization for nearly all iOS locales as well, meaning that local representations of times and dates are shown in the calendar view. As before, you can add timezone cities in many different foreign languages. Together these two features mean that while the app's user interface language may not be available in your language, once you add your timezones, you can still enjoy a fully localized experience. 8.0 08/11/2018 Fixed bug that made it hard to close dialogs on the iPhone X.
New in 7.1: Timezone Calendar now supports nautical time zones with fixed offsets such as UTC+1000 and UTC-0700. Unlike terrestrial city-reference time zones, these offset-based ones observe no daylight savings or other changes, so UTC+1000 will always be UTC+1000. Useful if you're keeping track of time independently like when sailing the high seas. To use this feature, search by "UTC+" or "UTC-" to display the list of hourly offsets. As is the case throughout the app, "GMT" can be used instead of "UTC", should you prefer. 7.2 07/07/2018 Now supports nautical time zones with fixed offsets such as UTC+1000 and UTC-0700. Unlike terrestrial city-reference time zones, these offset-based ones observe no daylight savings or other changes, so UTC+1000 will always be UTC+1000. Useful if you're keeping track of time independently like when sailing the high seas.
To use this feature, search by "UTC+" or "UTC-" to display the list of hourly offsets. As is the case throughout the app, "GMT" can be used instead of "UTC", should you prefer.
Also included is "Anywhere on Earth (AoE)", an alias for the UTC-1200 offset, that is used by some standards bodies for ballot deadlines. 7.1 06/30/2018 Support for iOS 11.
Added ability to select which calendars to display. 7.0 10/01/2017 New style for calendar events.
iOS 10 Widget support. 6.0 12/03/2016 Fixed timezone search bug on iPad. 5.3 07/06/2016 Added an optional History feature, to automatically display previously visited timezones.
Great when you have cities A & B on the list, then you travel from A to B. 5.2 04/19/2016 • quick action shortcuts
• bugfixes 5.1 11/07/2015 • Today view extension 5.0 10/25/2015 • Better text readability for busy calendars
• Bugfixes 4.4 02/28/2015 Select and deselect active timezones 4.3 11/09/2014 Support for the iPhone 6 and iPhone 6 Plus 4.2 10/26/2014 iOS 8 Support 4.1 09/19/2014 • Added ability to rename Timezones.
• Cities are now searchable by alternate spellings.
• Better support for GMT timezone. 4.0 09/13/2014 • Displays the current time for each timezone, in addition to the red line time indicator.
• 24 hour time supported, the app will honor your device's setting, and you can override it in TZ Compare's settings.
Shout-outs: Fiona and Ken for prodding me to display the current time. Neiio for the kind words, and suggesting 24-hour time support. 3.0 05/15/2014 New: "Wind-forward" feature allows you to pick any time in the future (or past) and see timezone calculations.
This was our no.1 user requested feature. We hope you enjoy!
The word toolbar buttons have all been replaced with icons too, hope you like them. 2.1 05/05/2014
version 12.0
posted on 2026-09-03
Version History - Watch app and watch widget: view your timezones on your watch!
- Improved 24h/12h time format support 12.0 Mar 28 - Improved widget layout on some devices 11.2 12/17/2025 - Improved app resizing for iPadOS 26 11.1 11/16/2025 - Refreshed design with Liquid Glass on iOS 26 and iPadOS 26 11.0 09/17/2025 - Home screen widget
- Darker dark mode 10.0 06/23/2025 - Dark mode icon 9.3 01/26/2025 - More localizations
- New Shortcuts 9.2 05/26/2024 - Bug fixes 9.1 02/10/2024 - New name, same great app
- Dark Mode 9.0 01/28/2024 This app has been updated by Apple to prepare for watchOS 27 compatibility. No new features are included.
Full Chinese (Simplified) user interface localization.
Calendar view localization for nearly all iOS locales as well, meaning that local representations of times and dates are shown in the calendar view. As before, you can add timezone cities in many different foreign languages. Together these two features mean that while the app's user interface language may not be available in your language, once you add your timezones, you can still enjoy a fully localized experience. 8.0 08/11/2018 Fixed bug that made it hard to close dialogs on the iPhone X.
New in 7.1: Timezone Calendar now supports nautical time zones with fixed offsets such as UTC+1000 and UTC-0700. Unlike terrestrial city-reference time zones, these offset-based ones observe no daylight savings or other changes, so UTC+1000 will always be UTC+1000. Useful if you're keeping track of time independently like when sailing the high seas. To use this feature, search by "UTC+" or "UTC-" to display the list of hourly offsets. As is the case throughout the app, "GMT" can be used instead of "UTC", should you prefer. 7.2 07/07/2018 Now supports nautical time zones with fixed offsets such as UTC+1000 and UTC-0700. Unlike terrestrial city-reference time zones, these offset-based ones observe no daylight savings or other changes, so UTC+1000 will always be UTC+1000. Useful if you're keeping track of time independently like when sailing the high seas.
To use this feature, search by "UTC+" or "UTC-" to display the list of hourly offsets. As is the case throughout the app, "GMT" can be used instead of "UTC", should you prefer.
Also included is "Anywhere on Earth (AoE)", an alias for the UTC-1200 offset, that is used by some standards bodies for ballot deadlines. 7.1 06/30/2018 Support for iOS 11.
Added ability to select which calendars to display. 7.0 10/01/2017 New style for calendar events.
iOS 10 Widget support. 6.0 12/03/2016 Fixed timezone search bug on iPad. 5.3 07/06/2016 Added an optional History feature, to automatically display previously visited timezones.
Great when you have cities A & B on the list, then you travel from A to B. 5.2 04/19/2016 • quick action shortcuts
• bugfixes 5.1 11/07/2015 • Today view extension 5.0 10/25/2015 • Better text readability for busy calendars
• Bugfixes 4.4 02/28/2015 Select and deselect active timezones 4.3 11/09/2014 Support for the iPhone 6 and iPhone 6 Plus 4.2 10/26/2014 iOS 8 Support 4.1 09/19/2014 • Added ability to rename Timezones.
• Cities are now searchable by alternate spellings.
• Better support for GMT timezone. 4.0 09/13/2014 • Displays the current time for each timezone, in addition to the red line time indicator.
• 24 hour time supported, the app will honor your device's setting, and you can override it in TZ Compare's settings.
Shout-outs: Fiona and Ken for prodding me to display the current time. Neiio for the kind words, and suggesting 24-hour time support. 3.0 05/15/2014 New: "Wind-forward" feature allows you to pick any time in the future (or past) and see timezone calculations.
This was our no.1 user requested feature. We hope you enjoy!
The word toolbar buttons have all been replaced with icons too, hope you like them. 2.1 05/05/2014
version 12.0
posted on 2026-08-21
Version History - Watch app and watch widget: view your timezones on your watch!
- Improved 24h/12h time format support 12.0 Mar 28 - Improved widget layout on some devices 11.2 12/17/2025 - Improved app resizing for iPadOS 26 11.1 11/16/2025 - Refreshed design with Liquid Glass on iOS 26 and iPadOS 26 11.0 09/17/2025 - Home screen widget
- Darker dark mode 10.0 06/23/2025 - Dark mode icon 9.3 01/26/2025 - More localizations
- New Shortcuts 9.2 05/26/2024 - Bug fixes 9.1 02/10/2024 - New name, same great app
- Dark Mode 9.0 01/28/2024 This update from Apple will improve the functionality of this app. No new features are included.
Full Chinese (Simplified) user interface localization.
Calendar view localization for nearly all iOS locales as well, meaning that local representations of times and dates are shown in the calendar view. As before, you can add timezone cities in many different foreign languages. Together these two features mean that while the app's user interface language may not be available in your language, once you add your timezones, you can still enjoy a fully localized experience. 8.0 08/11/2018 Fixed bug that made it hard to close dialogs on the iPhone X.
New in 7.1: Timezone Calendar now supports nautical time zones with fixed offsets such as UTC+1000 and UTC-0700. Unlike terrestrial city-reference time zones, these offset-based ones observe no daylight savings or other changes, so UTC+1000 will always be UTC+1000. Useful if you're keeping track of time independently like when sailing the high seas. To use this feature, search by "UTC+" or "UTC-" to display the list of hourly offsets. As is the case throughout the app, "GMT" can be used instead of "UTC", should you prefer. 7.2 07/07/2018 Now supports nautical time zones with fixed offsets such as UTC+1000 and UTC-0700. Unlike terrestrial city-reference time zones, these offset-based ones observe no daylight savings or other changes, so UTC+1000 will always be UTC+1000. Useful if you're keeping track of time independently like when sailing the high seas.
To use this feature, search by "UTC+" or "UTC-" to display the list of hourly offsets. As is the case throughout the app, "GMT" can be used instead of "UTC", should you prefer.
Also included is "Anywhere on Earth (AoE)", an alias for the UTC-1200 offset, that is used by some standards bodies for ballot deadlines. 7.1 06/30/2018 Support for iOS 11.
Added ability to select which calendars to display. 7.0 10/01/2017 New style for calendar events.
iOS 10 Widget support. 6.0 12/03/2016 Fixed timezone search bug on iPad. 5.3 07/06/2016 Added an optional History feature, to automatically display previously visited timezones.
Great when you have cities A & B on the list, then you travel from A to B. 5.2 04/19/2016 • quick action shortcuts
• bugfixes 5.1 11/07/2015 • Today view extension 5.0 10/25/2015 • Better text readability for busy calendars
• Bugfixes 4.4 02/28/2015 Select and deselect active timezones 4.3 11/09/2014 Support for the iPhone 6 and iPhone 6 Plus 4.2 10/26/2014 iOS 8 Support 4.1 09/19/2014 • Added ability to rename Timezones.
• Cities are now searchable by alternate spellings.
• Better support for GMT timezone. 4.0 09/13/2014 • Displays the current time for each timezone, in addition to the red line time indicator.
• 24 hour time supported, the app will honor your device's setting, and you can override it in TZ Compare's settings.
Shout-outs: Fiona and Ken for prodding me to display the current time. Neiio for the kind words, and suggesting 24-hour time support. 3.0 05/15/2014 New: "Wind-forward" feature allows you to pick any time in the future (or past) and see timezone calculations.
This was our no.1 user requested feature. We hope you enjoy!
The word toolbar buttons have all been replaced with icons too, hope you like them. 2.1 05/05/2014
version 11.2
posted on 2025-12-17
- Improved widget layout on some devices
version 10.0
posted on 2025-06-22
Jun 22, 2025
Version 10.0
- Darker dark mode
version 9.3
posted on 2025-02-01
Feb 1, 2025
Version 9.3
- Dark mode fixes
version 9.2
posted on 2024-05-26
May 26, 2024
Version 9.2
- More localizations
- New Shortcuts
version 9.1
posted on 2024-02-10
Feb 10, 2024
Version 9.1
- Bug fixes
version -
posted on 2024-02-03
version 8.0
posted on 2018-08-11
11 Aug 2018 Version 8.0
Full Chinese (Simplified) user interface localization.
Calendar view localization for nearly all iOS locales as well, meaning that local representations of times and dates are shown in the calendar view. As before, you can add timezone cities in many different foreign languages. Together these two features mean that while the app's user interface language may not be available in your language, once you add your timezones, you can still enjoy a fully localized experience.
Disclaimer
Official App Store Link
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