Fullscreen Clock
Digital and analog clock for secondary monitors, studio dashboards and events.
Open tool fullscreen →Interface and local controls remain in Portuguese.
How to use
- Open the tool and choose your preferred layout (Digital or Analog).
- Enter fullscreen mode (F11) to hide browser chrome and OS taskbars.
- Keep the tab open on your secondary screen as a continuous time reference.
When to use
- Continuous studio time reference on secondary monitors and reception desks.
- Timed cue tracking during live presentations and broadcasts.
- Minimalist dashboard for idle auxiliary displays.
Limitations
Time data is sourced from the local operating system RTC clock. The tool does not serve as a primary NTP time server.
Frequently Asked Questions
- Does the clock work without an active internet connection?
- Resources already cached by the service worker can open without a connection. Time comes from the clock configured on the device.
- How does it handle browser background tab throttling?
- The browser may delay timers in inactive tabs. After you return, the next update reads the device clock again.
Technical Methodology & Display Science
The component reads `Date` and formats time, date and time zone through `Intl.DateTimeFormat`. A `setTimeout` aligned to the next second schedules updates.
Browsers may delay inactive-tab timers. Every update takes a fresh device-clock reading, without claiming network or VSync synchronisation.
The service worker caches the main shell for later use; offline availability depends on the browser completing that cache.