Fullscreen Clock - Free Online | FunToolX
Use Fullscreen Clock online for free, no download required. FunToolX offers hundreds of fun online tools.
About this tool
Fullscreen Clock is a free online utility tool. Large digital clock with 12/24h format, multiple color themes, custom time offset. Fullscreen for maximum visibility. An everyday helper that saves you time. It runs entirely in your browser — no download or sign-up needed.
After opening the page, the ultra-large digital clock is displayed, occupying the entire screen. You can switch between the 12-hour clock or the 24-hour clock, show or hide the number of seconds, and display the current date and week. Press F11 to enter full-screen browser mode, and the clock will automatically adapt to the screen size. Support custom font colors and background colors.
The clock is updated in real time based on the Date object, and the display is refreshed every second. Numbers use CSS adaptive scaling to fill the viewing area regardless of screen size. The low-brightness mode can dim the display and is suitable for night use without dazzling eyes.
Suitable for conference rooms, classrooms, exhibition halls and other places that need eye-catching time display. It can also be used as a desktop clock, especially when an external monitor is connected, a tab can be specially opened to display the time.
The full-screen clock tool turns the browser window into a large digital clock. It supports 12/24 hour clock, second display, and date display. It is suitable for conference rooms and classrooms.