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Real-time precision age calculator

  • 1 Devlogs
  • 2 Total hours

Real-time precision age calculator & lifetime metrics comparator built with Vanilla JS, Tailwind CSS, and Material 3 design tokens.

Ship #1 Changes requested

I built a precision age calculator that breaks down your exact lifetime across multiple units—years, months, weeks, days, hours, and seconds.

The trickiest part was getting the real-time time conversions and leap-year math to stay accurate down to the exact second. I designed the interface using Google Stitch for a clean Material 3 layout and styled it with Tailwind CSS, while using Google Antigravity to structure the code and ChatGPT to help debug edge cases in the date-calculation logic.

To test it out, just enter your birth date and watch all the lifetime breakdown metrics update in real time!

  • 1 devlog
  • 2h
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