time
Time Difference Calculator
Calculate the exact time difference between two times.
Time Zone Converter
Time Zone Converter — Convert Time Between Cities
Convert times between any world time zones instantly — handles Daylight Saving Time automatically.
Source Time
IST — India Standard Time (UTC+5:30)
Convert To
EST — Eastern Standard Time (UTC-5)
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Quick Start Instructions
Choose source and target timezones, enter any time to see the converted equivalent. Adjusts for live DST rules. Useful for scheduling international calls.
- 1Select your source time zone from the first dropdown menu.
- 2Enter or select the time you want to convert.
- 3Select your target time zone from the second dropdown menu.
- 4View the converted time instantly on your screen.
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Frequently Asked Questions
How do I convert time between time zones?
Select your source time zone, enter the time, then select your target time zone. The converter instantly shows the equivalent time in the target zone.
Does the converter adjust automatically to my local system time?
Yes, the source time is set to your local system time by default, making it simple to calculate differences starting from your current moment.
Does it handle Daylight Saving Time (DST)?
Yes. The converter automatically accounts for Daylight Saving Time based on the selected date.
How many time zones are supported?
All major world time zones are supported, including IST, EST, PST, GMT, CET, JST, AEST, and many more.
Can I convert IST to EST or other Indian time zone conversions?
Yes. IST (Indian Standard Time, UTC+5:30) to EST, PST, GMT, and all other zones are fully supported.
Detailed Guide & Overview
Time Zone Converter: Coordinate Across the Globe Instantly
India operates on Indian Standard Time (IST), which is UTC+5:30 — one of the few countries in the world with a half-hour offset from UTC. IST is 5 hours 30 minutes ahead of UTC, which means it doesn't align cleanly with whole-hour time zones used by most other countries. This makes mental time zone conversion from India to other countries particularly confusing. Our Time Zone Converter handles any combination of time zones instantly.
IST to Key Global Time Zones Reference
- IST to UTC: Subtract 5 hours 30 minutes (9:00 AM IST = 3:30 AM UTC)
- IST to US Eastern (EST/EDT): Subtract 10.5 hours (standard) or 9.5 hours (daylight) — 9:00 AM IST = 10:30 PM EST previous day
- IST to US Pacific (PST/PDT): Subtract 13.5 hours (standard) or 12.5 hours (daylight)
- IST to UK (GMT/BST): Subtract 5.5 hours (GMT) or 4.5 hours (BST during summer)
- IST to Singapore (SGT): Add 2.5 hours (Singapore is UTC+8)
- IST to Dubai (GST): Subtract 1.5 hours (UAE is UTC+4)
- IST to Japan (JST): Add 3.5 hours (Japan is UTC+9)
- IST to Australia Eastern (AEST/AEDT): Add 4.5 hours (AEST, UTC+10)
Daylight Saving Time: What Indian Users Need to Know
India does not observe Daylight Saving Time (DST). However, most Western countries (USA, UK, Europe, Canada, Australia) do. This means the IST offset to these countries changes twice a year — typically in March and November. When scheduling calls or meetings with international counterparts, always check whether their country is currently in standard or daylight time, as the offset can shift by an hour. Our converter uses live DST data to show the correct current offset at any given date and time.
Common Use Cases for Time Zone Conversion in India
- Remote work with US clients: Most Indian IT and outsourcing companies work with US clients — the overlap window between IST and US Eastern business hours is roughly 6:30 PM to 10:30 PM IST (or 7:30 PM–11:30 PM IST for US Pacific coast).
- International job interviews: When your interview is scheduled in the hiring company's local time, convert to IST to set the correct alarm.
- Watching live international sports: Formula 1, Premier League, NBA, WWE — all broadcast in foreign time zones.
- Stock market timings: US markets open at 9:30 AM ET = 8:00 PM IST (standard time) or 7:00 PM IST (daylight time). London Stock Exchange opens at 8:00 AM GMT = 1:30 PM IST.
- International travel planning: Planning layover durations and arrival times across multiple time zones.
UTC vs GMT: Are They the Same?
UTC (Coordinated Universal Time) and GMT (Greenwich Mean Time) are often used interchangeably but are technically different. GMT is a time zone based on the Prime Meridian passing through Greenwich, London. UTC is the international time standard maintained by atomic clocks. For practical purposes, they are identical — both are UTC+0:00. The key difference is that GMT changes with British Summer Time (BST = GMT+1) during daylight saving, while UTC never changes.