Compare Time Zones Worldwide
🌍 Search for cities above to add them
Try: New York, Tokyo, London, Sydney...
Try: New York, Tokyo, London, Sydney...
worldtime.site is a free browser-based timezone comparison tool. Add cities from any IANA timezone — New York, London, Tokyo, Sydney, or hundreds more — and see their current time side by side on a 24-hour timeline. Each column represents the same moment across all cities, so you can instantly tell what time it is everywhere.
Beyond basic timezone conversion, worldtime.site offers a full set of tools for planning across time zones. The 24-hour timeline uses color-coded day and night indicators (☀️ / 🌙) so you can see at a glance who's in business hours. The time converter lets you click any hour slot to see what that time means in every other city — even across midnight boundaries. Drag and drop cities to reorder them; the first city becomes your Home timezone anchor.
Everything runs entirely in your browser — no data is sent to any server. Your city list is saved locally and syncs through shareable URL links. With built-in dark mode, timezone abbreviation toggles (EDT, BST, JST), and fuzzy search that matches both city names and abbreviations, worldtime.site is designed to be the fastest timezone comparison tool you'll use.