Zone Clock

UTC clock, world timezones, time converter — built for analytics professionals.

ZONE CLOCK — UTC & World Time Converter ──────────────────────────────────────── Tired of Googling "EST to IST" every time you need to convert a time? Zone Clock is a fast, beautiful browser extension that keeps UTC time front and center — with live world clocks, an instant time converter, and bookmarked timezones — all in one click. Built for analytics professionals, data teams, developers, and anyone who works across time zones every day. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⏱ WHAT ZONE CLOCK DOES ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🕐 UTC Primary Clock Always-visible UTC time displayed as a large, precise clock with hours, minutes, and seconds. The browser badge shows live UTC time so you never lose track — even when the extension is closed. Supports 12-hour and 24-hour formats. Copy the full UTC timestamp to clipboard in one click. 🌍 World Timezones — 75+ Cities Browse and search over 75 major IANA timezones across Americas, Europe, Asia, Pacific, and Africa. Every timezone shows live local time and UTC offset. Bookmark any city to pin it to your home screen for instant access. 🔄 Time Converter Pick any timezone, enter a time and date, and instantly see what it is in any other timezone. See the full offset difference ("Mumbai is +9h 30m ahead of New York"). Quickly compare with all your bookmarked zones at once. 📌 My Zones — Pinned Bookmarks Pin your most-used cities and they appear front and center every time you open Zone Clock. Default pins include New York, Chicago, Los Angeles, and London — fully customizable. ⚙️ Settings That Respect Your Preferences - Time format: 24-hour or 12-hour (AM/PM) - Date format: ISO 8601 (2024-03-18), US (03/18/2024), or EU (18/03/2024) - Toggle seconds display on or off - Toggle Unix timestamp display - Toggle DST badge on timezone cards 🎨 Three Themes Light, Dark, and System — automatically follows your OS preference. Designed to feel at home in any workflow. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 👤 WHO IS THIS FOR? ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✅ Analytics & data professionals tracking event timestamps in UTC ✅ Remote and distributed teams scheduling across time zones ✅ Developers and engineers working with UTC logs and APIs ✅ Finance and trading professionals monitoring global markets ✅ Freelancers coordinating with international clients ✅ Digital nomads living across multiple time zones ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔒 PRIVACY FIRST ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Zone Clock is 100% private: • No account or sign-in required • No data collected or transmitted • No ads, ever • All settings stored locally on your device only • Works completely offline ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⚡ TECHNICAL HIGHLIGHTS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ • 75+ IANA standard timezones across all regions • Live UTC badge on browser toolbar — always visible • Native Intl.DateTimeFormat for accurate DST detection • Manifest V3 — the latest and most secure Chrome extension standard • Lightweight — no external libraries, loads instantly • Full keyboard accessibility ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📦 FREE FOREVER ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Zone Clock is completely free. No premium tier. No hidden features behind a paywall. No subscription. Install once and use it every day, forever. If you find it useful, leaving a review helps other professionals discover it — and it only takes 30 seconds.