Comparison

World Clock by timeanddate.com vs World Time Clock Master

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

World Clock by timeanddate.com

This app provides global time information, including current times, time zones, and DST details for cities worldwide. It also offers sunrise/sunset, moonrise/moonset, and twilight times, along with country flags, currency, and dialing codes. A home screen widget offers quick access to city times.

Highlights
  • Home screen widget for city times
  • Automatic location detection
  • Time zone and DST information
  • Sunrise, sunset, moonrise, moonset times
  • Country flags and foreign currencies
  • Dialing codes
  • iCloud sync
Features
Read full description

Contains • A home screen widget for easy access to city times. • Automatic detection of your current location. • Time zone information. • Daylight Saving Time (DST) switch dates & times. • Sunrise & sunset times. • Moonrise & moonset times. • Twilight and dawn information. • Latitude and longitude coordinates. • Flags per country. • Foreign currencies. • Dialing codes (country and area codes). • Clock faces which change to show day & night. • iCloud sync across devices. • The app supports the Gregorian calendar The free app is funded by advertising. The upgrade (in-app purchase) removes all ads and provides functionality without limitations. timeanddate.com came online in 1998, and we have more than 15 years experience as the number one online provider of accurate and reliable time and date related information worldwide.

About

World Time Clock Master

Effortlessly manage multiple time zones with this app. Convert times instantly, schedule events, and view global clocks at a glance with interactive widgets. Features atomic accuracy and a vast database of locations.

Highlights
  • Multiple time zone display
  • Interactive time conversion
  • Event scheduling
  • Atomic time accuracy
  • Dynamic home screen widgets
  • List mode for text view
  • Real moon phases and sunrise/sunset
Features
Read full description

THE EASIEST WAY TO DEAL WITH MULTIPLE TIMEZONES + INTERACTIVE WIDGETS Sick of screwing up meeting times and missing calls? This app cuts through time-zone confusion and hands you the perfect hour at a glance. Forget guesswork — just click, connect, and impress. KEY FEATURES EVENT SCHEDULING MADE EASY Found the perfect meeting time? Add events to your calendar with just a tap, and never miss an international webinar, call, or special moment again. ATOMIC ACCURACY No drift, no guesswork. Each second syncs with the atomic standard, so you can trust every moment. Extensive Time Zone Database: Tap into over 160,000 locations and time zones including GMT, UTC, and more. UNIFIED CLOCK FACE View all your essential time zones at a glance on one beautifully designed, customizable clock face. Whether you prefer digital or analog displays (or even military time), everything is exactly where you need it. INTERACTIVE TIME CONVERSION Convert times instantly by simply twisting or swiping across the clock face. Watch as your selected time zones update in real time—making planning international calls, meetings, or travel effortless. DYNAMIC WIDGETS Access global times without even opening the app. Our interactive home screen widget lets you drag a simple line to reveal and convert times, ensuring you’re always in sync no matter where you are. LIST MODE Get a clean, text-based view of all your cities in one column. See times and dates at a glance, and scroll to check future or past hours. It’s a no-fuss way to track the world’s clocks. FEELS LIKE A LUXURY TIMEPIECE We poured effort into details most people never notice — and we’re okay with that. Our users aren’t “most people.” Details include: — Real Moon Phases — Real Moon Rotation — Real Sunrise & Sunset — Advanced City Lights — Haptic Feedback * * * World Clock Master offers a premium subscription: Subscribe to get access to unlimited timezones, interactive widgets, customizations, 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

Screenshots

World Clock by timeanddate.com4 screens
World Time Clock Master4 screens

Verdict

The call

The clearest difference is monetization model: World Clock by timeanddate.com at free with in-app purchases against World Time Clock Master's subscription. World Clock by timeanddate.com also leads on iOS requirement (14.0 vs 17.0). World Time Clock Master's advantage is rating (4.6 vs 4.2) and update cadence (fortnightly vs every 2 months). On price, review sentiment, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. World Clock by timeanddate.com sells 1 one-off in-app purchase and World Time Clock Master sells 10 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

World Time Clock Master holds the better App Store score, 4.6 against 4.2. That said, the two scores are not equally well evidenced: World Time Clock Master has 816 ratings behind it against 104, so its average is the more settled of the two. Written reviews point the same way: 59% of World Clock by timeanddate.com's written reviews are positive against 66% of World Time Clock Master's.

UpkeepUpdate frequency

World Clock by timeanddate.com ships an update every 2 months, World Time Clock Master fortnightly. The most recent releases landed on September 17, 2026 and September 29, 2026 respectively.

Scorecard5 real differences · 5 level
World Clock by timeanddate.com versus World Time Clock Master: the parameters behind the verdict, then further details
ParameterWorld Clock by timeanddate.comWorld Time Clock Master
PriceFreeFree
Rating4.2 (104 ratings)4.6 (816 ratings) — better
Positive reviews58.9% of reviews65.8% of reviews — better
Number of ratings104816 — better
Update frequencyEvery 2 monthsFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPad, Vision Pro
Requires iOS14.0 — better17.0
Further details — not scored
Size18 MB236 MB
Age rating4+4+
Developertimeanddate.comAlex Komarov Inc.

Customer experience

World Clock by timeanddate.com

All ratings104 ratings
Positive77.9%
Neutral4.8%
Negative17.3%
Written reviews107 reviews
Positive58.9%
Neutral13.1%
Negative28.0%

World Time Clock Master

All ratings816 ratings
Positive90.8%
Neutral2.8%
Negative6.4%
Written reviews76 reviews
Positive65.8%
Neutral5.3%
Negative28.9%

User reviews

World Clock by timeanddate.com

From 104 App Store ratings

What we love

  • 👍 Comprehensive timezone information and details
  • 👍 Easy to use and intuitive interface
  • 👍 Extensive city database with multiple timezones
  • 👍 Helpful daylight saving time information
  • 👍 Time zone conversion calculator feature

Room to improve

  • 🚫 No updates for years - app abandoned
  • 🚫 Widget functionality broken or unavailable
  • 🚫 iOS 18 compatibility issues
  • 🚫 Excessive location permission requests
  • 🚫 Outdated and dated visual design

World Time Clock Master

From 816 App Store ratings

What we love

  • 🚀 Delightful scheduling assistance
  • 👍 Feature improvement
  • 👍 The best Timezone helper
  • 👍 One of the best clocks around
  • 👍 The Widget is so damn cool!

Room to improve

  • 🐛 Problemas al actualizar
  • 🐛 Sticky signup interface
  • 🐛 Demo not enough
  • 🔒 NOT A FREE APP
  • 💰 Terrible monetisation model compared to previous app

Bugs and requests

World Clock by timeanddate.com

Reported bugs

14 issues
  • Widget not working or unavailable in iOS 18
  • Widget display cuts off time information
  • Widget crashes with 'unavailable to load' error
  • App crashes on startup after updates
  • Cities disappear from favorites list
Show 9 more
  • List reorders itself unexpectedly
  • Date display cut off on main page
  • Text missing on search page in iOS 17.1
  • Language changes automatically to German/Norwegian
  • Time zone calculations incorrect for some cities
  • In-app purchase not registering properly
  • Paid ad-free version still showing ads
  • App displays blank when opened
  • Jerky and unintuitive navigation

Requested features

15 requests
  • Dark mode support
  • Weather information integration
  • Alarm/alert functionality
  • Tide time calculations
  • Time zone map visualization
Show 10 more
  • Ability to enter custom latitude/longitude
  • Countdown timer feature
  • Higher limit on favorite cities
  • Show seconds in digital display
  • Multiple widget design options
  • Time difference display in numbers
  • Future date/time calculation on main screen
  • Customizable background colors and font sizes
  • Pin to lock screen option
  • Seasons information display

World Time Clock Master

Reported bugs

4 issues
  • Lose all the registered locations after updating the app
  • Sticky signup interface
  • Widget doesn't work
  • GMT and London currently have a 1 hour time difference between the two locations, but the app shows them the same time

Requested features

4 requests
  • Add the time difference in hours between the default location and other locations in both the widget and the app
  • See my calendar events on the dial
  • Make a paid tier that doesn't collect my data
  • Add new event to a Calendar

In-app purchases

1 purchases

World Clock by timeanddate.com

One-time1
  • Basic Upgrade$2.99
10 purchases

World Time Clock Master

Subscriptions6
  • 1 month3 variants$2.991 Month
  • 3 months$3.993 Months
  • 1 year1 Year trial2 variants$11.991 Year
Show 3 more
  • 1 year3 Days trial$11.991 Year
  • 1 year$11.991 Year
  • 1 year3 Days trial$19.991 Year
One-time4
  • Lifetime$29.99
  • Lifetime$49.99
  • Lifetime$79.99
Show 1 more
  • Lifetime$99.99

Questions

Is World Clock by timeanddate.com free?
World Clock by timeanddate.com is free to download, with in-app purchases available.
Is World Time Clock Master free?
World Time Clock Master is free to download, with in-app purchases available.
Which has better reviews, World Clock by timeanddate.com or World Time Clock Master?
World Time Clock Master is rated higher. World Clock by timeanddate.com averages 4.2 out of 5 from 104 ratings, while World Time Clock Master averages 4.6 from 816 ratings.
Do World Clock by timeanddate.com or World Time Clock Master have ads?
Neither World Clock by timeanddate.com nor World Time Clock Master shows ads.
Which is updated more often, World Clock by timeanddate.com or World Time Clock Master?
World Clock by timeanddate.com ships an update every 2 months, and World Time Clock Master fortnightly. Most recently, World Clock by timeanddate.com was updated on September 17, 2026 and World Time Clock Master on September 29, 2026.

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