24-hour clock
04:00
What Time Is 04:00?
04:00 in 24-hour time is 4:00 AM on a 12-hour clock.
12-hour clock
4:00 AM
Your local time now
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4:00 AM is a clock reading, not a countdown target. Use a how-long-until page to time it.
Countdown to this clock time: how long until 4:00 AM