Time and Frequency Standards Laboratory

Time and Frequency Standards Laboratory

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
* HF broadcast service operating at 10 MHz under call sign "ATA" to synchronise the user clock within a millisecond.
* INSAT satellite-based standard time and frequency broadcast service which offers IST correct to ±10 microsecond and frequency calibration up to ±10-10.
* Time and frequency calibrations are made with the help of pico- and nano-seconds time interval, frequency counters, and phase recorders.


* [http://wwp.greenwichmeantime.com/time-zone/asia/india/time/indian-time-today.htm Indian Time Today (IST)]

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