ZoneTime: World Clock
World Clock & Meeting Planner
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Line up every city on one swipeable timeline, see at a glance who's awake, and tap to plan the meeting. 7,000+ cities, searchable offline. No account.
ZoneTime lines up every city you care about on one swipeable timeline, so you
can see who's awake, spot the best time to call, and share the plan in one tap.
FEATURES
• A synced timeline for every city, color-coded by work hours, awake hours, and night
• 7,000+ cities and every timezone, searchable offline — even by abbreviation like EST or CET
• Tap the timeline to plan a meeting, drag either edge to adjust it, and share by email, calendar, or message
• Groups for teams, family, or clients, with custom labels for each person
• Automatic daylight saving handling
• Light and dark themes, 12- or 24-hour time
No account. No sign-up. No email. No ads. No subscription. Your cities and
groups stay on your iPhone, and every timezone lookup works offline. No
tracking of you across other companies' apps or websites, and nothing shared
with data brokers.
I build these apps on my own, in retirement, as a way of giving back. No company, no investors, no marketing budget — what you pay goes purely into developing the next feature and the next app. You'll probably laugh at what I charge.
Free to start, no commitment up front. Most apps want that decision before you've seen a screen, then quietly bill you. Not this one — nothing to remember to cancel.
After 7 days of use it asks you to unlock it — one payment, and that's the last you'll hear of it. Still not sure? Extend another week, free — I'd rather you were genuinely happy with it before you pay. This app alone, or $5.99 for all 10 — full apps across different categories, each one built because someone asked, and your payment covers every new app you ask me to build too. Never a subscription — yours for good, updates included.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
This update improves app stability and reliability.
The developer, Meng-Yi Hsu, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Meng-Yi Hsu
- Size
- 54.5 MB
- Category
- Productivity
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- All-Apps Unlock $5.99
- Unlock ZoneTime Final $9.99
- Unlock ZoneTime $7.99
- Copyright
- © 2026 Mark Utility Labs