Convert meeting times across IANA timezones with automatic DST handling, and see live current times in world cities. Pick source and target zones offline.
Part of our Time & Date collection — Explore more Time & Date tools · See also: Age Calculator, Timestamp Converter.
Quick answer: Timezone & World Clock Converter — Convert times + live city clocks Free, no signup, runs in your browser. See below for the interactive tool, 4-step guide and FAQs.
Current time in 5 cities updating every second. Add any IANA timezone (e.g. Asia/Kolkata).
Validate via Intl.DateTimeFormat — e.g. America/Los_Angeles
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Curated major IANA identifiers spanning America/New_York, Europe/London and Asia/Tokyo cover continents for reliable scheduling. For example, 2026-03-10 15:00 New York becomes 04:00 Mar 11 Tokyo with DST honored. Input meeting moments directly; obscure hamlets may warrant manual verification.
Yes. Source preselects device zone through Intl detection, so 2026-03-10 15:00 initially mirrors your city. For example, Berlin shows CET while New York displays EDT during March. Adjust source to America/New_York and target Asia/Tokyo contrasting 15:00 against 04:00 next day.
Resolution leverages IANA designations via Intl formatting, automatically shifting EST to EDT in March and reverting November. For example, 2026-03-10 15:00 New York equals EDT UTC-4 arriving 04:00 Mar 11 Tokyo JST. Single meetings convert precisely; live dashboards require complementary clocks.
No. Zone arithmetic executes entirely in your browser; nothing is sent to a server. Conversions clear on close while copied invites remain ready for distribution today.
Winter reversion to EST UTC-5 widens New York Tokyo separation to 14 hours versus 13 during EDT. For example, Dec 15:00 EST reaches 05:00 next-day JST. Recognize seasonal oscillation when planning recurring standups spanning March and November transitions.
Translate meeting instants across principal IANA territories with automatic DST resolution, displaying origin and destination side-by-side for error-free scheduling. A 15:00 New York slot Mar 10 emerges 04:00 next-day Tokyo, reconciling EDT UTC-4 against JST UTC+9. Reference table maps offsets: New York EDT UTC-4 to Tokyo JST UTC+9 equals 13 hours | London GMT UTC+0 to New York EST UTC-5 equals 5 hours | Kolkata IST UTC+5:30 fixed year-round | Sydney AEDT UTC+11 summer variable. Example one aligns standup: 15:00 America/New_York Mar 10 converts 04:00 Asia/Tokyo Mar 11 for invites. Edge handling flags invalid IANA spellings, normalizes daylight abbreviations and preserves date rollover across midnight correctly. Distributed crews coordinate rituals, freelancers confirm calls and travelers anticipate landings.
Engine resolves moments through Intl formatting against canonical names like America/New_York and Asia/Tokyo, applying March forward jumps and November backward returns innately. Input 2026-03-10 15:00 New York discovers EDT UTC-4, adds thirteen hours reaching 04:00 Mar 11 Tokyo. Device zone preselection trims setup friction for everyday use. Example two contrasts seasons: identical 15:00 December EST UTC-5 arrives 05:00 next-day JST, exposing one-hour winter divergence. Edge intricacies involve ambiguous fall-back hours occurring twice, southern-hemisphere inverted DST and historical rule changes altering past offsets. Verify recurring series across transition weekends, document UTC baselines and archive conversions for audit trails consistently every quarter.
Schedule 15:00 America/New_York 2026-03-10, read 04:00 Asia/Tokyo Mar 11 for email and calendar insertion. Winter counterpart shifts to 05:00 due EST return. Coverage emphasizes major hubs; rare localities demand manual lookup. Limitations exclude live ticking, alarm triggering and bulk roster translation for enterprise calendars. Copy outcomes with one action for chats and invites. For continuous city ticking every second with Asia/Kolkata UTC+5:30 versus New York EDT, switch to the World Clock tab above to monitor overlap visually. Reassess before daylight transitions and international travel legs.