Binary Clock

Read the current time as labelled binary values.

00:00:00

Add the weights of the on bits in each column. The 1 and 0 labels keep every state readable without color.

How to use it

A clear, quick workflow

  1. Choose 24-hour or 12-hour display.
  2. Read the ordinary clock first, then compare each binary column.
  3. Add the weights beside the bits marked 1 to recover each value.

Example

A seconds column showing weights 32 + 4 + 1 represents 37 seconds.

Limits and behavior

The clock follows the device clock and local time zone. Updates align to real second boundaries rather than accumulating interval ticks.

FAQ

Do I need color vision to read the bits?

No. Every bit contains a visible 1 or 0, uses a distinct border style, and has a screen-reader label with its weight and state.