so we could say ' I go to bed at 7 o'clock PM '. 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 ...

so we could say ' I go to bed at 7 o'clock PM '. 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 ...

Daylight saving time​ in 2025, when clocks change by an hour, has started. Here's a look at when exactly we "spring forward." ...

Daylight saving time started on March 9, 2025. Here's a look at a 24-hour chart comparing daylight saving time (DST) and standard time (ST) and tips that can help you adjust.