World Clock:Timezone Converter

Every time zone. One glance. One tap to convert.
World Clock: Timezone Converter is the fastest way to track time across the globe. Whether you're scheduling meetings with a distributed team, calling family overseas, or planning your next trip - see every city's local time at a glance with beautiful color gradients that shift from day to night.

INSTANT TIME CONVERSION
Tap any city to open the converter. Slide the time and watch every clock on your screen update simultaneously - colors shift from sunrise to sunset as you scrub through the hours. No other app makes time conversion this visual and intuitive.

TIMELINE GRID
Switch to the Timeline tab for a powerful hourly grid view. See all your cities side by side with color-coded cells - golden hours highlight overlapping work times so you can find the perfect meeting slot in seconds.

PEOPLE & GROUPS
Assign contacts to time zones and organize them into groups - Team, Family, Clients. See at a glance who's awake, who's in their workday, and who you shouldn't call right now. Add up to 3 people free.

DATE CALCULATOR
Need to know the date 90 business days from now? Or how many days between two dates? The built-in calculator handles date math, business day calculations, and duration computations.

WIDGETS
Analog clocks, digital grids, solar arcs, world maps, timeline views, people status, gradient cards, heat maps - plus Lock Screen and Liquid Glass styles for iOS 26. Your Home Screen, your way.

WORKS COMPLETELY OFFLINE
All core features - clocks, converter, timeline, sunrise/sunset calculations - work without an internet connection. Your data stays on your device.

FREE FEATURES
Track up to 4 cities with live time-of-day gradients
Full time converter with hour slider
Timeline grid with color-coded golden hours
Share conversion cards (with watermark)
Date calculator with duration and business day math
Up to 3 people with timezone tracking
Dark mode, 12h/24h formats
DST awareness with advance warnings
VoiceOver and Dynamic Type support

PRO SUBSCRIPTION (unlocks with monthly, annual, or lifetime purchase):
Unlimited cities and people
Calendar Quick-Add with title, notes, and duration
All widget styles including Lock Screen
Smart Share to Slack, Teams, and Google Calendar
.ics calendar invite export
Share cards without watermark
Custom themes, app icons, and emoji
Weather and moon/solar data at each location
Live seconds display
Timeline range selection and overlap finder
Meeting cost analysis
Smart notifications
AI Time Assistant
Custom work hours per person

Terms of Service: https://worldtimezones.app/terms
Privacy Policy: https://worldtimezones.app/privacy