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 now the norm, this affects everyone from sales teams booking demos to recruiters scheduling interviews.

So I set out to stop people googling "what time is 2pm PST in GMT+7" five times a day.

The Solution

Convert Time is a Chrome extension that does one thing: it finds times on the webpage you're looking at and tells you what they are in your timezone.…