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Binary Time Converter

Convert any conventional decimal timestamp into Standard Binary or Binary-Coded Decimal (BCD). Type your time values below to see real-time bit encoding and step-by-step mathematical calculations.

Need a step-by-step breakdown of how base-2 time math works? Read our base-2 clock logic guide or explore worked binary clock examples for 00:00:00, 12:00:00, 13:45:09, and 23:59:59.
Input Format:

Common Reference Times in Binary

Time (Decimal)Standard Binary (24H)BCD RepresentationNotes
00:00:0000000 : 000000 : 0000000000 0000 : 0000 0000 : 0000 0000Midnight zero boundary point
09:09:0901001 : 001001 : 0010010000 1001 : 0000 1001 : 0000 1001Symmetric morning repeat
12:00:0001100 : 000000 : 0000000001 0010 : 0000 0000 : 0000 0000Noon half-day benchmark
13:45:0901101 : 101101 : 0010010001 0011 : 0100 0101 : 0000 1001Classic textbook example
23:59:5910111 : 111011 : 1110110010 0011 : 0101 1001 : 0101 1001Maximum 24H time value

Related Binary Time Tools & Guides

Binary Time ConverterConvert any time (HH:MM:SS) to binary or BCD with step-by-step bit math.Convert any time to binary →Binary Number ConverterConvert binary to decimal and decimal to binary instantly with a visual bit matrix.Open the binary number converter →BCD ConverterConvert decimal numbers to 4-bit BCD nibbles (8-4-2-1) and BCD back to decimal.Convert decimal to BCD nibbles →Binary Clock PracticeDrill binary-to-decimal, decimal-to-binary and full clock reading at three difficulty levels.Practice reading binary clocks →

Binary Time Converter FAQ

How does the binary time converter work?

Enter standard hours, minutes, and seconds, then choose between Standard Binary and BCD. The converter validates your numbers instantly and translates each segment into its binary bit sequence with an exact mathematical power-of-two breakdown.

What is the difference between 12-hour and 24-hour conversion?

In 24-hour mode, hours range from 0 to 23 and require 5 bits in Standard Binary. In 12-hour mode, hours range from 1 to 12 along with an AM/PM indicator, fitting inside 4 bits in Standard Binary.

Can I copy the binary time result?

Yes, clicking the Copy Result button places the formatted binary string onto your system clipboard with instant visual confirmation.

Why does the BCD converter produce 6 separate binary groups?

BCD encodes individual base-10 digits rather than full integers. A 6-digit timestamp (HH:MM:SS) requires six 4-bit nibbles, each representing one decimal digit from 0 to 9.