We can tell the time without saying AM and PM though - for this, we use the 24 hour clock. The 24 hour clock always uses 4 digits, and we use this system most often with digital clocks.

We can tell the time without saying AM and PM though - for this, we use the 24 hour clock. The 24 hour clock always uses 4 digits, and we use this system most often with digital clocks.

The lock screen displays various things, including a clock, so that you can check the time right after turning on your PC. Depending upon the setting, it may show a 24-hour or 12-hour format.

(They held one 24-hour screening of the whole thing back ... Whatever happened next, I don’t know. I left, and The Clock kept going. Time marches on.