Difference Between Indian Standard Time (IST) and Greenwich Mean Time (GMT)

Learn about the key differences between Indian Standard Time (IST) and Greenwich Mean Time (GMT) including conversion and daylight saving time.

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Indian Standard Time (IST) is 5 hours and 30 minutes ahead of Greenwich Mean Time (GMT). When it is 12:00 noon GMT, it is 5:30 PM IST. This difference is constant throughout the year as India does not observe daylight saving time.

FAQs & Answers

  1. How many hours ahead is IST from GMT? Indian Standard Time (IST) is 5 hours and 30 minutes ahead of Greenwich Mean Time (GMT).
  2. Does India observe Daylight Saving Time? No, India does not observe Daylight Saving Time, so the IST to GMT difference remains constant throughout the year.
  3. What is Greenwich Mean Time used for? Greenwich Mean Time (GMT) is used as a global time standard for coordinating time around the world.
  4. How to convert IST to GMT? To convert IST to GMT, subtract 5 hours and 30 minutes from the IST time.

Watch More

For a deeper understanding of global timekeeping, check out our videos on other major time zones and their differences, including detailed information on Daylight Saving Time practices.

  1. Understanding the Difference Between Indian Standard Time and Greenwich Mean Time Learn how Indian Standard Time (IST) differs from Greenwich Mean Time (GMT) and its importance in global communication.
  2. Understanding the Time Difference Between Greenwich Mean Time and India Discover the 5 hours 30 minutes time difference between GMT and India; a key for scheduling international events.
  3. Understanding India's Time Zone: Why is India Ahead of Greenwich Mean Time? Discover why India is ahead of GMT by 5 hours and 30 minutes based on its geographical location.