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  2. Indian Standard Time - Wikipedia

    en.wikipedia.org/wiki/Indian_Standard_Time

    Indian Standard Time. DST is not observed in this time zone. Indian Standard Time ( IST ), sometimes also called India Standard Time, is the time zone observed throughout the Republic of India, with a time offset of UTC+05:30. India does not observe daylight saving time or other seasonal adjustments. In military and aviation time, IST is ...

  3. Time in India - Wikipedia

    en.wikipedia.org/wiki/Time_in_India

    UTC+05:30. Current time. 19:44, 29 May 2024 IST [ refresh] Observance of DST. DST is not observed in this time zone. India uses only one time zone (even though it spans two geographical time zones) across the whole nation and all its territories, called Indian Standard Time (IST), which equates to UTC+05:30, i.e. five and a half hours ahead of ...

  4. Hindu units of time - Wikipedia

    en.wikipedia.org/wiki/Hindu_units_of_time

    Hindu units of time are described in Hindu texts ranging from microseconds to trillions of years, including cycles of cosmic time that repeat general events in Hindu cosmology. [1] [2] Time ( kāla) is described as eternal. [3] Various fragments of time are described in the Vedas, Manusmriti, Bhagavata Purana, Vishnu Purana, Mahabharata, Surya ...

  5. Coordinated Universal Time - Wikipedia

    en.wikipedia.org/wiki/Coordinated_Universal_Time

    Coordinated Universal Time ( UTC) is the primary time standard globally used to regulate clocks and time. It establishes a reference for the current time, forming the basis for civil time and time zones. UTC facilitates international communication, navigation, scientific research, and commerce. UTC has been widely embraced by most countries and ...

  6. How India got stuck in its own unusual time zone - AOL

    www.aol.com/news/india-got-stuck-own-unusual...

    Nine hours and 30 minutes ahead of New York. Five hours and 30 minutes ahead of London. Three hours and 30 minutes behind Tokyo. For more than a century, India’s clocks have officially fallen ...

  7. Calcutta Time - Wikipedia

    en.wikipedia.org/wiki/Calcutta_time

    It was determined as 5 hours, 53 minutes and 20 seconds ahead of Greenwich Mean Time (UTC+5:53:20). Calcutta Time was described as being 23 minutes and 20 second ahead of Indian standard time and one hour, two minutes and 20 seconds ahead of Bombay Time. It has also been described as 32 minutes and 6 seconds ahead of Madras Time (UTC+5:21:14).

  8. History of timekeeping devices - Wikipedia

    en.wikipedia.org/wiki/History_of_timekeeping_devices

    The Shortt–Synchronome clock, an electrical driven pendulum clock designed in 1921, was the first clock to be a more accurate timekeeper than the Earth itself. [167] A succession of innovations and discoveries led to the invention of the modern quartz timer. The vacuum tube oscillator was invented in 1912. [168]

  9. Time and Frequency Standards Laboratory - Wikipedia

    en.wikipedia.org/wiki/Time_and_Frequency...

    The Time and Frequency Standards Laboratory is a part of the National Physical Laboratory in New Delhi which maintains and calibrates the Indian Standard Time . Features of the Time and Frequency Standards Lab include: Four caesium and rubidium atomic clocks. An innovative time service via telephone line known as Teleclock service was launched ...