live-datetime-cli

A small terminal clock written in C. It prints the current date and time, live. Installs to /usr/local/bin with make install, and is run with live-datetime.
Feel free to change the code as you'd like. MIT License applies.

Requirements

• Linux
• gcc and make
• ANSI Escape Sequence support

Build & run

make build
make run

Install & uninstall (to /usr/local/bin)

make install
make uninstall

Output format

By default, the output format is asctime()'s, for example: Fri Oct 2 19:58:00 2026

To use the custom DD/MM/YYYY hh:mm:ss format, uncomment this line at the top of live-datetime.c:
// #define USE_CUSTOM_TIMEDATE_FORMAT
Example of this custom format: 02/10/2026 19:58:00

Keywords:
terminal clock, CLI, command line, live clock, real-time, datetime, C, Linux, lightweight, minimal, no dependencies