Time Zone Planner & Converter
Plan any meeting across time zones, now on iPhone Duo and Apple Vision Pro. See when the clocks change, slide to any hour, 21 languages. One purchase.
When it's 3 PM here, what time is it there? World Clocks 24 shows every time zone side by side, with the UTC offset, the local date and when daylight saving time changes. A slider moves time forward or back 24 hours, a date picker jumps to any day, and every clock follows.
Use it to plan meetings, work out flight arrivals, and know who is awake before you call.
No account. No ads. No tracking. One purchase for Mac, iPhone, iPad and Apple Vision Pro.
WHAT YOU CAN DO
• Plan a meeting: drag the slider to 9 AM in Seattle and read Berlin, Bangalore and Tokyo at the same moment.
• Plan any day: tap the date at the top and pick one, up to months ahead. Every clock shows that day, with its own date when it is a different day there. "Today" brings you back.
• Know when the clocks change: each clock says when its daylight saving time starts or ends, for example "DST ends in 17 days (Oct 25)". Every zone follows its own rules, and zones without DST show nothing. Europe and the US change on different weekends, so for a week or so the London to New York difference shifts by an hour. Now you can see it coming.
• Add any place: search by city, country or abbreviation (Seattle, Mumbai, India, PST). Popular cities are listed first, and a new install offers one-tap starter clocks.
• Plan a trip: slide ahead to your landing time and see the time at home, at your layover and for whoever is picking you up.
• Keep people straight: label clocks "Mom", "Support" or "Partners".
• Read every detail: UTC offset, zone code (CEST, JST, AEDT), and hours ahead or behind you, shown next to every clock. Odd offsets like +5:45 and +12:45 are handled.
• Land on exact hours: the slider locks at "now" and at each whole hour, with a haptic tick on iPhone and iPad. Turn on "Show Time Zone on Slider" in Settings and it also names the zone you are moving into ("+9h AEDT").
• Make it yours: four fonts (System, Rounded, Serif, Monospaced), any text size, optional seconds, and your choice of date format (system, 25 Oct, Oct 25, 2026-10-25 or numeric). Prefer a cleaner list? Turn the DST notes off in Settings. On Mac, resize the window from one row to a full list.
• Your language: 21 languages, including Arabic, Bengali, Chinese, French, German, Hindi, Japanese, Spanish and Urdu. Pick one in Settings > Language and the whole app switches at once, no restart.
• Every screen: grows on iPhone Duo when you unfold it, and runs as a native glass window on Apple Vision Pro with large text and look-and-pinch controls.
BUILT FOR PEOPLE WHO WORK ACROSS ZONES
Remote teams, travelers, pilots and flight crews, traders, support desks, families spread across countries. If you often ask "what time will it be in X when it's Y in Z?", this answers it in one glance.
REQUIREMENTS
Mac (macOS 14 or later), iPhone and iPad (iOS 17 or later), Apple Vision Pro (visionOS 2 or later). Universal purchase: buy once, use on all four. Your clock list stays on your device.
Questions or ideas? https://tcp0.com/worldclocks24/support.html