Digital Clock & Countdown to my BirthDay: datetime in JS

Project #5 of 22 in "Building mini-apps" progression
JavaScript
Digital Clock & Countdown to my BirthDay: datetime in JS thumbnail

Updated: Apr 10, 2026

See the Pen Digital Clock & Countdown to my BirthDay: datetime in JS by gau (@gau) on CodePen.

Lessons

  1. #1.Digital clock #1
  2. #2.Countdown to my BirthDay #2
Digital Clock & Countdown to my BirthDay: datetime in JS