Building a Timezone Converter Chrome Extension: Convert Time Case Study

There are over 400 timezones. I built a Chrome extension that handles all of them on hover. Here's what I learned. Key Metrics Metric Value Installs 267 Timezones Supported 400+ User Action Required 1 hover Time Saved ∞ The Problem I saw many people in reddit forums, constantly tripping over timezone math. Every call, every deadline, every "let's sync at 3pm" - which 3pm? Mine or yours? There are over 400 when you factor in half-hour offsets, DST variations, and regional quirks. With remote work