Big Digital Day Clock — Time, Day and Date Full Screen

A big clock online that spells out the day

This big digital day clock fills the screen with the things people most often ask a clock: what day it is, what the date is, what time it is, and whether it is morning, afternoon, evening or night. The text is very large, the colours are high contrast, and nothing flashes or moves.

It suits a spare tablet by a bed or chair, a wall-mounted monitor in a hallway or classroom, a waiting room, or anyone who finds a small phone clock hard to read. Many families and carers like a day-and-date clock because the weekday is easy to lose track of. This page is a plain clock, not a medical device, and makes no health claims.

How to use the Big Digital Day Clock

1. Open the page. The clock starts at once using your device’s date and time.
2. Pick the colours (white on black, yellow on black, black on white or white on dark blue) and a text size.
3. Tick 24-hour time if you prefer it. Seconds are off by default because a ticking number can distract; tick Show seconds to add them.
4. Press Full screen to fill the display. Press Esc, or the button again, to leave.
5. Tick Keep the screen on so a tablet does not sleep while the page is open and visible.

Big Digital Day Clock features

How the part of the day is chosen

These are common everyday boundaries, not a standard. The label simply follows the hour on your device.

Setting it up well

Place the screen where the person can see it from their usual chair or bed, at eye level, away from glare from windows. Choose the colour pair that is easiest to read in that room: white or yellow on black suits dim rooms, while black on white suits bright ones. Start with the extra large text size and move to the largest if the person still has to lean in. Check the device date, time zone and daylight saving setting once, because the clock shows exactly what the device believes. If several people use the room, a calm single display is often better than a busy dashboard, which is why this page shows only four things.

Tips for a display that stays on

• Plug the device in. Keeping the screen awake uses power, and the browser releases the lock when the tab is hidden or the battery is very low.
• Not every browser supports the screen wake lock. If yours does not, the page says so; you can also change the device’s own sleep setting.
• Use full screen on a kiosk, or turn on the browser’s own “add to home screen” mode on a tablet.
• For time in other cities, use the world clock; for waking up, the alarm clock; to work out the weekday of any date, the day of the week calculator.