AtlasView is an interactive world-time map for iPhone. Move the map or jump to a city to see the local time, place, time-zone name, UTC difference, and the real geographic boundary of the selected time zone.
- Automatic time-zone and place detection at the map crosshair
- Analog and digital clocks updated in real time
- Transparent, draggable glass-style information card
- Horizontally scrollable city and time-zone shortcuts
- Real-world time-zone boundaries with highlighting for the selected zone
- Correct handling of daylight-saving time and fractional UTC offsets
- Offline bundled time-zone boundary geometry
- Accessibility label for the analog clock
- iOS 17 or later
- Xcode 26 or later
The app uses newer Liquid Glass effects when available and falls back to standard SwiftUI materials on earlier supported iOS versions.
- Open
iMapView.xcodeprojin Xcode. - Select the
iMapViewscheme. - Choose an iPhone or iOS Simulator.
- Build and run.
For installation on a physical device, select your Apple Development team in the target's Signing & Capabilities settings.
- Maps and reverse geocoding: Apple MapKit and Core Location
- Time-zone rules: the system IANA time-zone database through Foundation
- Boundary geometry: Timezone Boundary Builder, derived from OpenStreetMap data
The bundled boundary geometry is simplified for efficient rendering on mobile devices.
See PRIVACY.md.