Toki-O
Explore diverse time systems.
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Discover diverse time systems! Convert and explore Earth, astronomical, and cultural chronologies. Your comprehensive app for understanding temporal dimensions.
Time-O is an app for exploring and converting between over 40 time systems from science, astronomy, computing, history, and culture.
View real-time clocks and calendars including Gregorian, Unix Epoch, Julian Date, Martian Time, GPS Time, Swatch Internet Time, Stardates, and more. Each system includes live updates and a short explanation.
Features:
40+ time systems across scientific, astronomical, cultural, and fictional categories.
Real-time conversion between multiple date and time formats.
Time controls for pausing, rewinding, advancing, and scrubbing through time.
Location-based calculations for solar and sidereal time systems.
Interactive world map for custom location selection.
Historic and future event presets.
Clean dark-mode interface with animated visualizations.
Time-O is designed for anyone interested in timekeeping, astronomy, computing, history, or science fiction.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Marc Picco, 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 Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Marc Picco
- Size
- 1.3 MB
- Category
- Utilities
- Compatibility
Requires iOS 26.4 or later.
- iPhone
Requires iOS 26.4 or later. - Mac
Requires macOS 26.4 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.4 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Marc Picco