Planning a call across time zones should not require mental gymnastics. The Gizmo 421 Time Zone Converter takes one date and time in one place and shows you exactly what that moment looks like everywhere else — automatic daylight saving handling included, because the engine talks directly to your browser’s built-in time zone database.
Everything runs locally in your browser. DST rules come straight from your device’s time zone database — no lookups, no accounts, no data sent anywhere.
Every conversion here is computed by the same time zone engine your operating system uses, which means daylight saving transitions, half-hour offsets (hello, India), and quirks like zones that shift by 45 minutes are all handled exactly right. Type a meeting time in your zone and the results grid instantly shows the local time in Chicago, New York, Los Angeles, London, Madrid, and Tokyo — plus your selected origin zone — with a green +1d or -1d chip when the date crosses midnight.
Why do my meeting invites show the wrong time? Usually a mismatch between the sender’s time zone setting and yours. This converter helps you double-check the true wall-clock time on both ends. Does it handle daylight saving time? Yes — DST is applied automatically for the exact date you pick, including the spring-forward and fall-back transition days. Can I check the current time around the world? The live clock strip at the bottom updates continuously, so you always see right now in the six most-referenced zones.