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World Clock -Time Converter-

World Clock -Time Converter-

Time Difference Calculator

14 ratings
62 reviews
With Ads
🔧 Utilities
✈️ Travel
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • April 29, 2013
  • March 30, 2026

Features

Developer

Yuki Fukui
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🧾$1.99
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About

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.

✓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
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What's New in World Clock

6.4

March 30, 2026

– Fixed a bug where incorrect characters were inserted into the time difference display when using 12-hour format. – Fixed a bug where the indicator color did not change when the theme color was changed. – Fixed a bug where text on settings screens and other areas was difficult to read in dark mode when the theme color was black.

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In-App Purchases

$1.99

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User reviews

Most RecentHighest RatedLowest Rated

Purchased ad removal

I purchased as removal a while back and it now says that product has been discontinued and restoring it doesn’t work. I’m sure it’s a bug but when it’s fixed I’ll change my review.
Swim'n BirdSwim'n Bird

Best time zone converter app

I tried many and this is the best. Simple, clean interface with current comparison and easy ability to shift to a future date and time.
Kingi2080Kingi2080

世界の時差を見るのに日本語表示しかできない欠陥がある

英語表記とは言わないまでも国旗表示なり対応できると思うんですが、世界の時差を確認するのに日本語表示だけってものすごく不便です

でももう更新対応もしてないみたいだし、せっかくいいのに中途半端な感じですね
いいものだけど、iPhoneのオリジナル時計とそう変わらないものを作っても便利とは言えないので、☆2止まりです

更新対応あればfullにしたく思います
これでは誰にもオススメはできないから
RuraaRuraa

活用させて貰っています

シンプルで使いやすいですね。サマータイムがひと目で分かる様になると更に便利かと思うのですが。EDT、ESTでは直感的に分かり辛いもので。。よろしくお願い致します。
iPhone6買いましたiPhone6買いました

現地時間同士の計算ができるのは楽

世界時計は現在の時間が表示されるアプリは多々あるが、外国と外国の時間を計算するアプリはなかなかなかった。
日本から出張しA国から、B国主催のオンライン会議に出る予定の場合、A国で何時なのか、その場合ホテルはもう一泊必要なのか、飛行機は何時で取れば無駄がないか考えたり計算がめんどかったがこれは1発で時間が出るので非常に便利！
保存とメモ機能が追加できるとアプリで完結できるし、それを共有(メール、PPT、LINE、SNS)や書き出し(PDFや画像)できると楽かなと。
まっきびしまっきびし
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FAQ

Does World Clock have ads?

Yes, World Clock contains advertisements. The screenshots provided were edited to not show ads.

How accurate is World Clock?

The app relies on iOS time data. While built with care, it does not guarantee the absolute accuracy of city names and times displayed, and users are advised to cross-reference with their default Clock app if discrepancies are found.

What devices does World Clock support?

World Clock is available for iPhone and iPod devices.

How do I change the time unit in World Clock?

You can change the time unit between 1 minute and 1 hour by double-tapping the time bar on the side of the screen.

Can I edit city names in World Clock?

Yes, you can press and hold on a city to change its name and edit custom names.

What is the age rating for World Clock?

World Clock has an age rating of 4+.

How often is World Clock updated?

The app was last updated on March 20, 2026, with version 6.3.

What are the main use cases for World Clock?

World Clock is useful for planning international meetings, making international calls, and for trip planning across different time zones.