World Clock & Time Converter

Keep track of time across the world — all in one place, right inside your browser sidebar. World Clock & Time Converter shows live ticking clocks for any city you choose, complete with real-time weather, sunrise & sunset times, day/night card themes, and a mini analog clock face. Everything updates every second and stays open alongside your browsing without switching tabs. 🕐 CLOCKS TAB • Add cities from an 80+ city directory or enter any custom latitude/longitude • Live weather (temperature in °C or °F), weather condition icon, sunrise & sunset per card • UTC offset badge — updates in real time to catch DST transitions the moment they happen • Hover any card to see the time difference vs your home city (±Xh tooltip) • Colour-code cities with Work, Personal, or Travel tags • Add nicknames or notes per city (shown as a teal label on the card) • Drag to reorder, filter by name, toggle compact mode, 12h/24h, and seconds display • Auto-detect your home city via GPS with one click ⏰ CONVERT TAB • Pick any city as the source, choose a date & time, and instantly see the equivalent time in all your cities • DST-safe: uses iterative timezone correction — not raw UTC offsets • Quick buttons: Now / +1h / +3h / +6h / +12h / Tomorrow 9 AM • Business hours overlap planner — colour-coded 24-segment bars show at a glance when all your cities are simultaneously in business hours • One-click copy of all results to clipboard ✏️ MANAGE TAB • Add, remove, and reorder cities • Set custom business hours per city (supports overnight ranges, e.g. 22:00–06:00) • Export and import your full city list as JSON 🔔 ALARMS TAB • Set alarms by city local time — fires a native OS notification even when the sidebar is closed • DST-safe scheduling; automatically reschedules to tomorrow if time has passed No account. No tracking. No ads. All data stays on your device. By Abhilash Kumar K · MIT © 2026