Comparison

World Clock vs Daylight Saving Time

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

Head to head
About

World Clock

Easily calculate time differences worldwide by scrolling a dynamic time bar. Add any city, set specific dates and times, and plan international meetings or calls effortlessly. The app syncs with iOS time data.

Highlights
  • Dynamic time bar for instant difference calculation
  • Add and manage multiple cities
  • Direct date and time specification
  • Customizable city names
  • Syncs with iOS time data
Features
Read full description

"World Clock" is the best app to calculate time differences all over the world. All cities' times change automatically just by scrolling it with your finger. Therefore, you don't need to add or subtract times any more to calculate time differences. ■■Features■■ -Scrolling the time bar on the side of the screen up and down simultaneously changes the time in each city to the future or past. -Double-tap the time bar to change the time unit between 1 minute and 1 hour. -You can add any city from the list of cities provided in the app. -Tap each city to specify the date and time directly. -Press and hold on a city to change the city and edit the custom name. -Only one fixed city can be displayed at the top of the screen. ■■Examples of use■■ -International meeting planner -International call -Trip planning Disclaimer:This application has been built with extreme care and attention. However, it does not guarantee the accuracy of the names and times of the cities displayed. Please note that we are not liable whatsoever for any profit loss, or any other form of loss experienced by the customer from using this application. ※We don't have any time difference data in our app. We have been inquiring about time differences of each city to iOS. Therefore, “World Clock” shows you the time of iOS. As a result, depending on the version of iOS you are using, the exact time may not be displayed. If you find a time lag in our app, please confirm default "Clock" app on your iPhone. If the time in "Clock" app is the same with the time in our “World Clock”, it means that our app is running normally. ※Abbreviated name of time zone was originally researched and added. If you notice any mistakes, please contact us from the support site. ※The screenshots are specially edited not to show ads.

About

Daylight Saving Time

Easily track daylight saving time changes worldwide. This app provides accurate switching dates for DST and standard time across various time zones.

Highlights
  • Check DST switching dates
  • View standard time dates
  • Supports global time zones
  • Simple and intuitive interface
Read full description

You can check the switching date of daylight saving time and standard time. Support for time zone of the world.

Screenshots

World Clock4 screens
Daylight Saving Time4 screens

Verdict

The call

The clearest difference is rating: Daylight Saving Time at 5.0 against World Clock's 3.9. Daylight Saving Time also leads on in-app purchases (none vs 1) and ads (none vs shown). World Clock's advantage is update cadence (every 6 weeks vs every 19 months) and review sentiment (77% vs 67%). On price, ratings volume and device support 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 sells 1 one-off in-app purchase. Daylight Saving Time asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Daylight Saving Time holds the better App Store score, 5.0 against 3.9. Both are backed by a comparable volume of ratings — 14 and 10 respectively. Written reviews complicate that: 77% of World Clock's written reviews are positive against 67% of Daylight Saving Time's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

World Clock ships an update every 6 weeks, Daylight Saving Time every 19 months. The most recent releases landed on October 9, 2026 and October 13, 2026 respectively.

Scorecard7 real differences · 3 level
World Clock versus Daylight Saving Time: the parameters behind the verdict, then further details
ParameterWorld ClockDaylight Saving Time
PriceFreeFree
Rating3.9 (14 ratings)5.0 (10 ratings) — better
Positive reviews77.4% of reviews — better66.7% of reviews
Number of ratings14 — better10
Update frequencyEvery 6 weeks — betterEvery 19 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationAd-supportedFree — better
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size6 MB4 MB
Age rating4+4+
DeveloperYuki Fukuihideko ogawa

Customer experience

World Clock

All ratings13 ratings
Positive76.9%
Neutral0.0%
Negative23.1%
Written reviews62 reviews
Positive77.4%
Neutral6.5%
Negative16.1%

Daylight Saving Time

All ratings10 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral33.3%
Negative0.0%

In-app purchases

1 purchases

World Clock

One-time1
  • Remove Advertisement$1.99
None

Daylight Saving Time

No in-app purchases

Questions

Is World Clock free?
World Clock is free to download, with in-app purchases available.
Is Daylight Saving Time free?
Daylight Saving Time is free to download, with no in-app purchases.
Which has better reviews, World Clock or Daylight Saving Time?
Daylight Saving Time is rated higher. World Clock averages 3.9 out of 5 from 14 ratings, while Daylight Saving Time averages 5.0 from 10 ratings.
Do World Clock or Daylight Saving Time have ads?
World Clock shows ads; Daylight Saving Time does not.
Which is updated more often, World Clock or Daylight Saving Time?
World Clock ships an update every 6 weeks, and Daylight Saving Time every 19 months. Most recently, World Clock was updated on October 9, 2026 and Daylight Saving Time on October 13, 2026.

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