World Clock Pro: Convert Time
Timezone Converter & Scheduler
Only for iPhone
Free · In‑App Purchases
TIMEZONE CALCULATOR – YOUR ULTIMATE WORLD TIME COMPANION
Master global time with a tool that is clear, concise, and built for busy international lives. Whether you’re scheduling business meetings or connecting with friends overseas, World Clock Pro keeps you in sync—simply and directly.
ESSENTIAL FEATURES
UNIVERSAL CLOCK ACCESS:
View accurate times in cities around the world—New York, London, Tokyo, Sydney. No fuss, just the facts.
EFFORTLESS TIME CONVERSION:
Swipe to convert and compare time zones with precision. Plan your calls and meetings with ease.
SCHEDULE WITH CONFIDENCE:
Create and integrate calendar events quickly. Organize trips, group activities, and international calls without confusion.
INSTANT TIME SHARING:
Share exact times via email, SMS, social media, or messengers. Coordination is just a click away.
HUGE CITY & TIMEZONE DATABASE:
Access over 160,000 cities and popular time zones like GMT, UTC, EST, and PST at your fingertips.
WHY THIS APP MATTERS
Say goodbye to timezone confusion. This isn’t just another world clock—it’s a powerful tool for global thinkers, frequent travelers, and anyone who values clear, reliable time data. Streamline your schedule and manage your day without delay.
EXTEND YOUR EXPERIENCE
For a deeper dive into global time management, World Clock Pro is also available on Mac. Just search “World Clock Pro” in the Mac AppStore
* * *
World Clock Pro offers a premium subscription:
Subscribe to get access to unlimited timezones, and timely automatic updates of our timezone database of more than 160,000 locations and timezones.
– Length of subscription: 1 month or 1 year
– Payment will be charged to iTunes Account at confirmation of purchase
– Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period
– Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal
– Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase
– Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable
– Terms & Conditions: https://timemaster.s3.amazonaws.com/Time-master-terms.pdf
– Privacy Policy: https://timemaster.s3.amazonaws.com/Time-master-privacy-policy.pdf
more I have tried many clocks to keep track of my large extended family that lives all over the world. They all usually function with the same type of interface, several different clocks showing the different times. This app elegantly includes all of the times I need on one clock face, easy to read, much more concise. All the information I need is really there at one glance. I really enjoy this app and I use it at least 10 times a day.
I have tried many clocks to keep track of my large extended family that lives all over the world. They all usually function with the same type of interface, several different clocks showing the different times. This app elegantly includes all of the times I need on one clock face, easy to read, much more concise. All the information I need is really there at one glance. I really enjoy this app and I use it at least 10 times a day.
It’s a nice design but still has several bugs.My main goal with this app was to share timezone information with different teams quickly. Slack, email and wiki are our main channels. For all the apps: If you choose to not show a city in the interface it still shows when you copy-paste the timezone information. Then you end up editing everything before posting to email or wiki. When trying to share the information in Slack it picks a random channel every time. There’s no way to select the channel you want to post to. If you copy the information it still shows the city you have hidden and (like in the email or wiki) have to edit in a photo app before being able to use it.
It’s a nice design but still has several bugs.My main goal with this app was to share timezone information with different teams quickly. Slack, email and wiki are our main channels. For all the apps: If you choose to not show a city in the interface it still shows when you copy-paste the timezone information. Then you end up editing everything before posting to email or wiki. When trying to share the information in Slack it picks a random channel every time. There’s no way to select the channel you want to post to. If you copy the information it still shows the city you have hidden and (like in the email or wiki) have to edit in a photo app before being able to use it.
This is the best way to keep track of multiple timezones. The magic is in seeing them in relatation to one another. I can see that the home office is just starting up for the day and can expect the usual morning emails and reminders. I can see where various friends and family are in their days across the world and all this from a single view . Need this as an actual wristwatch or Apple Watch face.
This is the best way to keep track of multiple timezones. The magic is in seeing them in relatation to one another. I can see that the home office is just starting up for the day and can expect the usual morning emails and reminders. I can see where various friends and family are in their days across the world and all this from a single view . Need this as an actual wristwatch or Apple Watch face.
The best tool to plan across multiple time zones. Ten years ago I ended up making my own 24 hrs clock with multiple hands of different colors for the different time zones I needed and with the 12 at 12 and the 24 at the usual “6” position with the 12 night hours darkened. I couldn’t move it forward to look for a convenient time for a phone call but I used it a lot. So welcome to this app!!
The best tool to plan across multiple time zones. Ten years ago I ended up making my own 24 hrs clock with multiple hands of different colors for the different time zones I needed and with the 12 at 12 and the 24 at the usual “6” position with the 12 night hours darkened. I couldn’t move it forward to look for a convenient time for a phone call but I used it a lot. So welcome to this app!!
— Bug fixes and stability improvements
1.6.4 09/22/2025
— Minor fixes and improvements
1.6.3 05/23/2025
— Bug fixes
1.6.2 07/24/2024
— Added Pro subscription
1.6.1 07/13/2024
— Added Pro subscription
1.6 07/12/2024
— Product Hunt launch
— Bug fixes
1.5.13 06/18/2024
— Bug fixes
— Product Hunt announcement
1.5.12 06/14/2024
— Bug fixes
1.5.11 05/03/2024
Introducing Time Master!
Our best timezone tracking app yet. Instructions on how to get it inside this update.
1.5.10 04/06/2024
World Clock Pro 2 announcement added
1.5.9 10/16/2023
Minor improvements, timezone updates
1.5.8 08/21/2023
World Clock Pro is now powered by UNIMATIC. Discover timeless, modern time pieces, that exemplify the true aesthetic and experience.
1.5.7 06/30/2023
— Fixed issue with stretched widget
1.5.6 05/08/2023
— Bugfixes
1.5.5 01/26/2023
1.5.4
— Bugfixes
1.5.3
— Fixed widget on iOS 14
1.5.2
— Some dark mode tweaks
— Mac version promo
1.5.1
— Dark mode support
— Full iOS 13+ support
— Timezone bug fixes
— Multiple small improvements
1.5
SHARING & EVENTS
Easily share times with your contacts, or create events in your calendar.
We hope you love it. If you have any feedback, send it to us using 'Email feedback' button in the app.
Other updates:
— Updated look & feel
— Ability to turn off local time
— Added timezone name next to the location name at the top of the screen
— Better support of new devices X, Xs, Xs max
— Fixed some widget-related bugs
1.4.4
— Bugfixes
— New devices' support
1.4.3
— Resolved duplicate locations issue
— Bug fixes and improvements
1.4.2
— iPhone X Support
— Bug fixes
1.4.1
— Seconds indicator (blinking colon in digital time at the top of the screen)
— Stability improvements
— Added missing locations
— Fixed some time inconsistencies.
1.4
INTERACTIVE WIDGET FOR THE TODAY VIEW
— Easily see up to 5 timezones right from your notification center
— Convert times right there with simple + and – buttons.
HAPTIC FEEDBACK
We further fine-tuned haptic feedback in the app to make feel like a sophisticated time-piece.
— Feel gentle clicks when scrolling time
— Clicks around 6 and 12 hour marks are more pronounced
— Hear soft clicking sound when scrolling
3D TOUCH SUPPORT
Force-touch the app icon on your phone's home screen to quickly peek at four times you added most recently.
OTHER IMPROVEMENTS
— Updated app icon
— Timezone database update, even more locations now available.
— Many minor improvements and bug fixes.
1.022
Bug fixes and improvements
1.021
Added app demo video
1.02
— Times and Locations Database auto-updater, which makes timezone information very accurate and always up to date.
— Chinese localization
— Bug fixes and improvements.
1.5.4 01/07/2023
1.5.3
— Fixed widget on iOS 14
1.5.2
— Some dark mode tweaks
— Mac version promo
1.5.1
— Dark mode support
— Full iOS 13+ support
— Timezone bug fixes
— Multiple small improvements
1.5
SHARING & EVENTS
Easily share times with your contacts, or create events in your calendar.
We hope you love it. If you have any feedback, send it to us using 'Email feedback' button in the app.
Other updates:
— Updated look & feel
— Ability to turn off local time
— Added timezone name next to the location name at the top of the screen
— Better support of new devices X, Xs, Xs max
— Fixed some widget-related bugs
1.4.4
— Bugfixes
— New devices' support
1.4.3
— Resolved duplicate locations issue
— Bug fixes and improvements
1.4.2
— iPhone X Support
— Bug fixes
1.4.1
— Seconds indicator (blinking colon in digital time at the top of the screen)
— Stability improvements
— Added missing locations
— Fixed some time inconsistencies.
1.4
INTERACTIVE WIDGET FOR THE TODAY VIEW
— Easily see up to 5 timezones right from your notification center
— Convert times right there with simple + and – buttons.
HAPTIC FEEDBACK
We further fine-tuned haptic feedback in the app to make feel like a sophisticated time-piece.
— Feel gentle clicks when scrolling time
— Clicks around 6 and 12 hour marks are more pronounced
— Hear soft clicking sound when scrolling
3D TOUCH SUPPORT
Force-touch the app icon on your phone's home screen to quickly peek at four times you added most recently.
OTHER IMPROVEMENTS
— Updated app icon
— Timezone database update, even more locations now available.
— Many minor improvements and bug fixes.
1.022
Bug fixes and improvements
1.021
Added app demo video
1.02
— Times and Locations Database auto-updater, which makes timezone information very accurate and always up to date.
— Chinese localization
— Bug fixes and improvements.
1.5.3 09/23/2020
1.5.2
— Some dark mode tweaks
— Mac version promo
1.5.1
— Dark mode support
— Full iOS 13+ support
— Timezone bug fixes
— Multiple small improvements
1.5
SHARING & EVENTS
Easily share times with your contacts, or create events in your calendar.
We hope you love it. If you have any feedback, send it to us using 'Email feedback' button in the app.
Other updates:
— Updated look & feel
— Ability to turn off local time
— Added timezone name next to the location name at the top of the screen
— Better support of new devices X, Xs, Xs max
— Fixed some widget-related bugs
1.4.4
— Bugfixes
— New devices' support
1.4.3
— Resolved duplicate locations issue
— Bug fixes and improvements
1.4.2
— iPhone X Support
— Bug fixes
1.4.1
— Seconds indicator (blinking colon in digital time at the top of the screen)
— Stability improvements
— Added missing locations
— Fixed some time inconsistencies.
1.4
INTERACTIVE WIDGET FOR THE TODAY VIEW
— Easily see up to 5 timezones right from your notification center
— Convert times right there with simple + and – buttons.
HAPTIC FEEDBACK
We further fine-tuned haptic feedback in the app to make feel like a sophisticated time-piece.
— Feel gentle clicks when scrolling time
— Clicks around 6 and 12 hour marks are more pronounced
— Hear soft clicking sound when scrolling
3D TOUCH SUPPORT
Force-touch the app icon on your phone's home screen to quickly peek at four times you added most recently.
OTHER IMPROVEMENTS
— Updated app icon
— Timezone database update, even more locations now available.
— Many minor improvements and bug fixes.
1.022
Bug fixes and improvements
1.021
Added app demo video
1.02
— Times and Locations Database auto-updater, which makes timezone information very accurate and always up to date.
— Chinese localization
— Bug fixes and improvements.
1.5.2 04/01/2020
1.5.1
— Dark mode support
— Full iOS 13+ support
— Timezone bug fixes
— Multiple small improvements
1.5
SHARING & EVENTS
Easily share times with your contacts, or create events in your calendar.
We hope you love it. If you have any feedback, send it to us using 'Email feedback' button in the app.
Other updates:
— Updated look & feel
— Ability to turn off local time
— Added timezone name next to the location name at the top of the screen
— Better support of new devices X, Xs, Xs max
— Fixed some widget-related bugs
1.4.4
— Bugfixes
— New devices' support
1.4.3
— Resolved duplicate locations issue
— Bug fixes and improvements
1.4.2
— iPhone X Support
— Bug fixes
1.4.1
— Seconds indicator (blinking colon in digital time at the top of the screen)
— Stability improvements
— Added missing locations
— Fixed some time inconsistencies.
1.4
INTERACTIVE WIDGET FOR THE TODAY VIEW
— Easily see up to 5 timezones right from your notification center
— Convert times right there with simple + and – buttons.
HAPTIC FEEDBACK
We further fine-tuned haptic feedback in the app to make feel like a sophisticated time-piece.
— Feel gentle clicks when scrolling time
— Clicks around 6 and 12 hour marks are more pronounced
— Hear soft clicking sound when scrolling
3D TOUCH SUPPORT
Force-touch the app icon on your phone's home screen to quickly peek at four times you added most recently.
OTHER IMPROVEMENTS
— Updated app icon
— Timezone database update, even more locations now available.
— Many minor improvements and bug fixes.
1.022
Bug fixes and improvements
1.021
Added app demo video
1.02
— Times and Locations Database auto-updater, which makes timezone information very accurate and always up to date.
— Chinese localization
— Bug fixes and improvements.
1.5.1 03/30/2020
1.5
SHARING & EVENTS
Easily share times with your contacts, or create events in your calendar.
We hope you love it. If you have any feedback, send it to us using 'Email feedback' button in the app.
Other updates:
— Updated look & feel
— Ability to turn off local time
— Added timezone name next to the location name at the top of the screen
— Better support of new devices X, Xs, Xs max
— Fixed some widget-related bugs
1.4.4
— Bugfixes
— New devices' support
1.4.3
— Resolved duplicate locations issue
— Bug fixes and improvements
1.4.2
— iPhone X Support
— Bug fixes
1.4.1
— Seconds indicator (blinking colon in digital time at the top of the screen)
— Stability improvements
— Added missing locations
— Fixed some time inconsistencies.
1.4
INTERACTIVE WIDGET FOR THE TODAY VIEW
— Easily see up to 5 timezones right from your notification center
— Convert times right there with simple + and – buttons.
HAPTIC FEEDBACK
We further fine-tuned haptic feedback in the app to make feel like a sophisticated time-piece.
— Feel gentle clicks when scrolling time
— Clicks around 6 and 12 hour marks are more pronounced
— Hear soft clicking sound when scrolling
3D TOUCH SUPPORT
Force-touch the app icon on your phone's home screen to quickly peek at four times you added most recently.
OTHER IMPROVEMENTS
— Updated app icon
— Timezone database update, even more locations now available.
— Many minor improvements and bug fixes.
1.022
Bug fixes and improvements
1.021
Added app demo video
1.02
— Times and Locations Database auto-updater, which makes timezone information very accurate and always up to date.
— Chinese localization
— Bug fixes and improvements.
1.5 10/27/2018
1.4.4
— Bugfixes
— New devices' support
1.4.3
— Resolved duplicate locations issue
— Bug fixes and improvements
1.4.2
— iPhone X Support
— Bug fixes
1.4.1
— Seconds indicator (blinking colon in digital time at the top of the screen)
— Stability improvements
— Added missing locations
— Fixed some time inconsistencies.
1.4
INTERACTIVE WIDGET FOR THE TODAY VIEW
— Easily see up to 5 timezones right from your notification center
— Convert times right there with simple + and – buttons.
HAPTIC FEEDBACK
We further fine-tuned haptic feedback in the app to make feel like a sophisticated time-piece.
— Feel gentle clicks when scrolling time
— Clicks around 6 and 12 hour marks are more pronounced
— Hear soft clicking sound when scrolling
3D TOUCH SUPPORT
Force-touch the app icon on your phone's home screen to quickly peek at four times you added most recently.
OTHER IMPROVEMENTS
— Updated app icon
— Timezone database update, even more locations now available.
— Many minor improvements and bug fixes.
1.022
Bug fixes and improvements
1.021
Added app demo video
1.02
— Times and Locations Database auto-updater, which makes timezone information very accurate and always up to date.
— Chinese localization
— Bug fixes and improvements.
1.4.4 09/27/2018
1.4.3
— Resolved duplicate locations issue
— Bug fixes and improvements
1.4.2
— iPhone X Support
— Bug fixes
1.4.1
— Seconds indicator (blinking colon in digital time at the top of the screen)
— Stability improvements
— Added missing locations
— Fixed some time inconsistencies.
1.4
INTERACTIVE WIDGET FOR THE TODAY VIEW
— Easily see up to 5 timezones right from your notification center
— Convert times right there with simple + and – buttons.
HAPTIC FEEDBACK
We further fine-tuned haptic feedback in the app to make feel like a sophisticated time-piece.
— Feel gentle clicks when scrolling time
— Clicks around 6 and 12 hour marks are more pronounced
— Hear soft clicking sound when scrolling
3D TOUCH SUPPORT
Force-touch the app icon on your phone's home screen to quickly peek at four times you added most recently.
OTHER IMPROVEMENTS
— Updated app icon
— Timezone database update, even more locations now available.
— Many minor improvements and bug fixes.
1.022
Bug fixes and improvements
1.021
Added app demo video
1.02
— Times and Locations Database auto-updater, which makes timezone information very accurate and always up to date.
— Chinese localization
— Bug fixes and improvements.
1.4.3 03/27/2018
1.4.2
— iPhone X Support
— Bug fixes
1.4.1
— Seconds indicator (blinking colon in digital time at the top of the screen)
— Stability improvements
— Added missing locations
— Fixed some time inconsistencies.
1.4
INTERACTIVE WIDGET FOR THE TODAY VIEW
— Easily see up to 5 timezones right from your notification center
— Convert times right there with simple + and – buttons.
HAPTIC FEEDBACK
We further fine-tuned haptic feedback in the app to make feel like a sophisticated time-piece.
— Feel gentle clicks when scrolling time
— Clicks around 6 and 12 hour marks are more pronounced
— Hear soft clicking sound when scrolling
3D TOUCH SUPPORT
Force-touch the app icon on your phone's home screen to quickly peek at four times you added most recently.
OTHER IMPROVEMENTS
— Updated app icon
— Timezone database update, even more locations now available.
— Many minor improvements and bug fixes.
1.022
Bug fixes and improvements
1.021
Added app demo video
1.02
— Times and Locations Database auto-updater, which makes timezone information very accurate and always up to date.
— Chinese localization
— Bug fixes and improvements.
1.4.2 01/11/2018
Seconds indicator (blinking colon in digital time at the top of the screen)
Stability improvements
Added missing locations
Fixed some time inconsistencies.
1.4
INTERACTIVE WIDGET FOR THE TODAY VIEW
- Easily see up to 5 timezones right from your notification center
- Convert times right there with simple + and – buttons.
HAPTIC FEEDBACK
We further fine-tuned haptic feedback in the app to make feel like a sophisticated time-piece.
- Feel gentle clicks when scrolling time
- Clicks around 6 and 12 hour marks are more pronounced
- Hear soft clicking sound when scrolling
3D TOUCH SUPPORT
Force-touch the app icon on your phone's home screen to quickly peek at four times you added most recently.
OTHER IMPROVEMENTS
- Updated app icon
- Timezone database update, even more locations now available.
- Many minor improvements and bug fixes.
1.022
Bug fixes and improvements
1.021
Added app demo video
1.02
— Times and Locations Database auto-updater, which makes timezone information very accurate and always up to date.
— Chinese localization
— Bug fixes and improvements.
1.4.1 10/12/2017
INTERACTIVE WIDGET FOR THE TODAY VIEW
- Easily see up to 5 timezones right from your notification center
- Convert times right there with simple + and – buttons.
HAPTIC FEEDBACK
We further fine-tuned haptic feedback in the app to make feel like a sophisticated time-piece.
- Feel gentle clicks when scrolling time
- Clicks around 6 and 12 hour marks are more pronounced
- Hear soft clicking sound when scrolling
3D TOUCH SUPPORT
Force-touch the app icon on your phone's home screen to quickly peek at four times you added most recently.
OTHER IMPROVEMENTS
- Updated app icon
- Timezone database update, even more locations now available.
- Many minor improvements and bug fixes.
1.022
Bug fixes and improvements
1.021
Added app demo video
1.02
— Times and Locations Database auto-updater, which makes timezone information very accurate and always up to date.
— Chinese localization
— Bug fixes and improvements.
1.4 08/29/2017
- Haptic feedback + sound when scrolling time
- Widget for the Today View
- 3d touch support (force-touch app icon on home screen)
- New app icon
- New app name (24 Hour World Clock is now World Clock Pro Mobile)
- Many minor improvements
1.022
Bug fixes and improvements
1.021
Added app demo video
1.02
— Times and Locations Database auto-updater, which makes timezone information very accurate and always up to date.
— Chinese localization
— Bug fixes and improvements.
1.3.2 06/10/2017
— Bug fixes and stability improvements
more Version 1.6.4 09/22/2025
Data Not Linked to You The following data may be collected but it is not linked to your identity:
