Live times worldwide and instant time zone conversion | 100% Private
Live local time, updating every second. Click "Add Target Zone" above to pin the zone currently selected in the converter.
Convert between hundreds of official time zones, from Asia/Kolkata to America/Los_Angeles.
Daylight saving transitions are applied automatically using your browser's time zone database.
Clearly flags when the converted time lands on the previous or next calendar day.
Everything runs in your browser — no dates, times, or locations are ever sent anywhere.
A time zone is a region that keeps the same local time, expressed as an offset from Coordinated Universal Time (UTC). India, for example, uses UTC+5:30 year-round, while much of the United States and Europe shift their offset twice a year for daylight saving time.
Converting between zones means finding the single moment in time your input refers to, then re-expressing that moment in the target zone's local time. Because offsets change with daylight saving, the correct arithmetic depends on the specific date — which is exactly why this tool asks for a date as well as a time.
IST is India Standard Time (UTC+5:30). GMT is Greenwich Mean Time (UTC+0), used by the UK in winter. EST and EDT are US Eastern Standard and Daylight time (UTC−5 and UTC−4). PST and PDT are US Pacific time (UTC−8 and UTC−7). CET and CEST cover most of Western Europe (UTC+1 and UTC+2). Abbreviations are ambiguous across regions, which is why this tool uses full IANA zone names like Asia/Kolkata instead.
When arranging a call with people in different countries, always confirm both the time and the date in each participant's local zone. A 9:00 PM meeting in India is 11:30 AM the same day in New York, but a 9:00 AM meeting in India is 11:30 PM the previous day there — a distinction that causes more missed meetings than any other scheduling mistake.
Enter the date and time, choose the source time zone it refers to, then choose the target time zone. The converted date and time appears instantly, along with the UTC offset and whether the result falls on a different calendar day.
Yes. The converter uses your browser's built-in IANA time zone database, which knows the exact DST rules and historical changes for each zone, so conversions are correct even across daylight saving transitions.
India Standard Time (IST) is UTC+5:30 year-round. US Eastern Time is UTC−5 in winter (EST) and UTC−4 in summer (EDT), which makes IST 10 hours 30 minutes ahead of EST, or 9 hours 30 minutes ahead of EDT.
When two time zones are far enough apart, the same moment can fall on a different calendar day in each. The converter labels this with a +1 day or −1 day indicator so you never accidentally schedule a meeting on the wrong date.
No. All time zone calculations run locally in your browser using the built-in Intl date and time API. Nothing you enter is transmitted, logged, or stored anywhere.