World Clocks 24 is a small app, so this is a short page. If something's wrong or you have a question, email us directly — a person reads every message.
Q Does my clock list sync between my Mac, iPhone, and iPad?
No. Each device keeps its own list — nothing is sent anywhere, which is also why the app has no account and no network permissions.
Q How do I change the text size or turn off seconds?
Tap the gear icon in the footer for Display Seconds, Font and Date Format, and the "A" buttons next to it to resize the text.
Q What does “DST ends in 17 days (Oct 25)” mean, and where does it come from?
It is the next daylight saving change for that clock’s own time zone, counted in calendar days there and dated in that zone. The rules come from the time zone database built into your Mac, iPhone or iPad, which Apple updates with system updates. Zones without daylight saving show nothing. To hide the notes, turn off Display Daylight Saving Time Data in Settings.
Q How do I see the clocks on a different day?
Tap the date at the top: a calendar opens on iPhone and iPad, a popover on Mac. Pick a day and every clock shows that day, with its own date when it is a different day there. Tap Today (or Now at the bottom) to come back. It combines with the 24-hour slider.
Q Can I change how dates are written?
Yes. Settings has a Date Format choice: your system format, 25 Oct, Oct 25, 2026-10-25, or numeric day/month/year or month/day/year. It applies to the date bar, the date under each time and the DST notes.
Q I bought it on my iPhone — do I have to pay again for Mac?
No. It's a universal purchase: one $2.99 purchase unlocks Mac, iPhone, and iPad under the same Apple ID.
Q Is there an Android version?
Yes, it is coming to Google Play for $2.99. It is a separate purchase from the Apple apps (Apple and Google purchases cannot be shared). Same clocks, slider, DST dates and 21 languages. No ads, no account.
Q How do I change the language?
Settings › Language lists all 21 languages, each in its own name, and the app switches at once. “System” follows your device. On Android you can also use Android Settings › Apps › World Clocks 24 › Language.
Bug report, feature request, or anything else —
Email tzs@tcp0.com We reply from tzs@tcp0.com — usually within a day or two.