Major timezone clock table.. Timezone Dev is a free online tool from the ToolsRift Developer Tools collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.
The table lists major IANA timezones with their current local time and updates every second. Use it to coordinate deploys, meetings and logs across regions.
A curated set of major zones including UTC, New York, Los Angeles, London, Berlin, Dubai, Kolkata, Singapore, Tokyo and Sydney.
Yes — times are formatted with the browser's Intl API, which applies each zone's current DST rules automatically.
Names like Asia/Kolkata are unambiguous and account for historical and DST changes, unlike fixed offsets such as GMT+5:30.