Binary clock
Each row is one number written in base 2. A lit bit means "add this power of two". Click any bit to switch to manual mode and build a time yourself.
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Live — following your system clock.
32168421
Hours
= 0
000000
Minutes
= 0
000000
Seconds
= 0
000000
How to read it
Adding up the lit weights gives the decimal number.
Hours: no bits lit = 0
Minutes: no bits lit = 0
Seconds: no bits lit = 0
Six bits cover 0–63, which is why hours, minutes and seconds each fit in a single six-bit row.