Convert any time between every country and time zone on Earth — EST to IST, PST to GMT, London to Tokyo and hundreds more. Pick a future date for a meeting and instantly see the local time, time difference, day change and whether it’s day or night, with Daylight Saving Time handled automatically.
All countries · future dates · DST-accurate
Schedule calls across any countries without the “wait, is that my time or yours?” confusion — EST to IST, PST to London, anywhere.
Know the local arrival time before you land, and convert departure times across zones for any travel date.
Find the overlap between working hours in different countries, or a good time to call family abroad.
To convert a time from one zone to another you first translate it to UTC (Coordinated Universal Time), then add the destination zone’s offset. For example, EST (Eastern Standard Time) is UTC−5 and IST (India Standard Time) is UTC+5:30, so India is 10 hours 30 minutes ahead of Eastern Standard Time. That means 9:00 AM EST = 7:30 PM IST the same day. During US Daylight Saving Time (mid-March to early November) New York switches to EDT (UTC−4), so the gap shrinks to 9 hours 30 minutes and 9:00 AM in New York becomes 6:30 PM in India. India does not observe Daylight Saving Time, which is exactly the kind of detail this converter handles for you automatically — just pick the real meeting date and the correct offset is applied.
This tool uses your browser’s built-in IANA time-zone database (the same data operating systems use), so it covers every country on Earth and every conversion reflects the actual Daylight Saving Time rules for that specific date and city — including zones with half-hour or 45-minute offsets (India UTC+5:30, Nepal UTC+5:45), Southern-Hemisphere DST that runs opposite to the north (Sydney, Auckland), and zones that never change clocks (most of Arizona, Hawaii, India, China, Japan, the Gulf).
ET: UTC−5 (−4 DST) · CT: UTC−6 (−5) · MT: UTC−7 (−6) · PT: UTC−8 (−7) · AKT: UTC−9 (−8) · HST: UTC−10 (no DST). Arizona stays on MST year-round.
IST India UTC+5:30 · PKT Pakistan +5 · BST Bangladesh +6 · ICT Thailand +7 · CST China +8 · JST Japan +9 · AEST Sydney +10 (+11 DST) · NZST Auckland +12 (+13 DST). No DST in India, China, Japan, the Gulf.
GMT/BST London 0 (+1 DST) · CET Paris/Berlin +1 (+2) · EET Athens/Cairo +2 (+3) · MSK Moscow +3 (no DST) · GST Dubai +4 · SAST Johannesburg +2 · WAT Lagos +1.
US East ↔ India: 8–10 AM ET = 6:30–8:30 PM IST works for both. US West ↔ Europe: 8–10 AM PT = 4–6 PM London. India ↔ Australia East: late afternoon IST = evening AEST.
The United States spans six main time zones, and converting between them is one of the most common reasons people reach for a time zone converter. Eastern Time (ET) runs New York, Washington DC, Atlanta, Miami and Boston; Central Time (CT) covers Chicago, Dallas, Houston and most of Texas; Mountain Time (MT) covers Denver and Salt Lake City; and Pacific Time (PT) covers Los Angeles, San Francisco, Seattle and the West Coast. Remote and hybrid teams convert EST to PST and CST to EST every day to schedule stand-ups, client calls and webinars, while travelers use it to adjust flight, layover and arrival times. Because all four continental US zones observe Daylight Saving Time on the same dates, the gaps between them stay constant — Eastern is always 3 hours ahead of Pacific, so 12 PM ET is 9 AM PT — but Arizona and Hawaii never change their clocks, and this converter applies the correct rule automatically the moment you pick a date.
For the millions of people working between America and India — IT and software engineers, BPO and customer-support staff on night shifts, founders, students and families staying in touch with relatives — converting EST to IST, PST to IST and IST to EST is a daily task. India runs on a single time zone, India Standard Time (IST, UTC+5:30), with no Daylight Saving, while the US shifts between standard and daylight time twice a year. So the most-searched question, “what is 9 AM EST in IST?”, has two answers depending on the season: 7:30 PM IST in winter (EST) and 6:30 PM IST in summer (EDT). From the West Coast, PST to IST is 13.5 hours (12.5 during PDT), so a 9:30 PM call in California lands at a comfortable late-morning slot the next day in Bengaluru, Hyderabad, Pune, Chennai, Mumbai or Delhi. Just type “India” or “IST” in the search box, pick your US city, and the tool shows the exact local time, the day change, and whether it is day or night in India — ideal for booking interviews, scrums, client demos and family video calls without the usual back-and-forth.
Beyond the USA and India, this is a complete world time zone converter covering every country on Earth. Convert GMT to IST, EST to GMT, London to New York, Dubai to London, Singapore to San Francisco, or Tokyo to Sydney in a single tap. GMT (Greenwich Mean Time) and UTC (Coordinated Universal Time) are the global reference points every other zone is measured against. Distributed companies and online communities use the world board to find a meeting slot that overlaps working hours across continents — a time that is reasonable in both London and Singapore, or in New York, Dubai and Tokyo at once. Whether you are coordinating a product launch, a webinar, an online exam, a remote interview, a livestream, a gaming session or a cricket or football kickoff, searching by country or city name makes the conversion instant and removes the guesswork of the time difference between countries.
The biggest source of time zone mistakes is Daylight Saving Time (DST). The US and Europe “spring forward” in March and “fall back” in late October or early November — but on slightly different dates, so for a couple of weeks each year the usual offset between, say, New York and London is off by an hour. The Southern Hemisphere is reversed: Australia and New Zealand begin daylight time around October as the north ends it. Many regions — including India, China, Japan, the Gulf states, most of Africa, Arizona and Hawaii — never change their clocks at all. Instead of memorizing any of this, simply choose your meeting date: this converter reads your browser’s official IANA time-zone database and applies the correct DST rule for that exact day, so your converted time is always accurate, even months into the future.
Popular conversions people search for: EST to IST, IST to EST, PST to IST, EST to PST, CST to IST, GMT to IST, IST to GMT, EST to GMT, PST to EST, EST to CET, CST to EST, IST to London, New York to India, California to India, London to New York, Dubai to India, Singapore to London and Tokyo to New York — all of these, and every other country pair, work in the converter above.