Convert any date and time between world cities—DST applied automatically. Everything runs locally in your browser.
A time zone converter translates a specific time from one time zone to one or more others — accounting for UTC offsets and Daylight Saving Time (DST) automatically.
The world is divided into 24+ time zones, each expressed as an offset from UTC (Coordinated Universal Time). UTC+0 is London in winter, UTC+5:30 is India, UTC-5 is New York in winter. A time zone converter takes a time in one zone and computes what it is simultaneously in others.
The complexity: many zones observe Daylight Saving Time (DST), shifting their offset by +1 hour in summer. The US, Europe, Australia, and others all observe DST on different dates. A converter must know the exact date to apply the correct offset — '2 PM New York' in January (UTC-5) is different from '2 PM New York' in July (UTC-4).
Input
9:00 AM New York (EST, UTC-5) · Convert to: London, Bangalore, SydneyOutput
London: 2:00 PM GMT · Bangalore: 7:30 PM IST · Sydney: 1:00 AM AEDT (next day)A 9 AM New York meeting spans three very different local times. Sydney is already the next day — a critical scheduling consideration. India's 30-minute offset (IST = UTC+5:30) is a common source of errors in manual calculation.
Input
3:00 PM New York on March 8, 2026 vs March 10, 2026 (US clocks spring forward March 8)Output
March 8: NYC=UTC-5 · March 10: NYC=UTC-4 (DST active)After the spring DST transition, New York moves from UTC-5 to UTC-4. A meeting scheduled for '3 PM NYC' one week before and after the transition has a different UTC time — relevant for automated scheduling systems.
Common real-world scenarios where this tool saves time.
Find a time that works for participants in New York, London, and Tokyo by converting a proposed meeting time to all relevant zones at once.
Convert your working hours to teammates' local times to schedule stand-ups, reviews, or handoffs without confusion over time zones.
Convert a product launch, webinar, or live stream time to multiple zones and list all of them in announcements so attendees worldwide know their local start time.
Confirm what 'end of business day' or '11:59 PM' means in a different time zone — common when submitting applications, filing taxes, or responding to international RFPs.
Type the time you want to convert and choose the time zone it is currently in — your local zone or a specific city/UTC offset.
Add one or more destination time zones. The tool shows the equivalent time in all selected zones simultaneously — useful for scheduling across multiple regions.
The converter shows the current UTC offset for each zone and flags Daylight Saving Time (DST) transitions. DST offsets change automatically based on the date.
Copy formatted times for meeting invites, or swap source/target zones to reverse the conversion.
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A time zone offset is the difference in hours (and sometimes minutes) between a location's local time and Coordinated Universal Time (UTC). UTC+5:30 means the local time is 5 hours and 30 minutes ahead of UTC — India Standard Time. UTC−5:00 means 5 hours behind UTC — US Eastern Standard Time in winter.
DST is the practice of advancing clocks by 1 hour during summer months to extend evening daylight. The US observes DST from March to November; Europe from late March to late October. This means the offset between two zones can shift by 1 hour depending on the time of year. The converter applies DST rules automatically based on the date you select.
UTC (Coordinated Universal Time) is the international time standard, maintained with atomic clocks. GMT (Greenwich Mean Time) is a historical time zone used in the UK. For most practical purposes they are equivalent, but UTC is the precise scientific standard and does not observe DST. Time zones are expressed as offsets from UTC.
Yes — completely free with no signup and no usage limits.
No. Conversion uses your browser's Intl API locally. Date, time, and zone selections are not sent to EverydayTools servers.
Timezone conversions run in your browser—date, time, and zone values are not uploaded to servers.
Uses IANA timezone data via the browser; unusual zones or very old dates may differ from desktop apps.
Scheduling aid only—confirm critical meetings against official calendars and attendee confirmations.
Part of Date & Time Tools
More free tools for the same workflow.
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Reviewed by EverydayTools Editorial Team on 2026-05-20.