News

The Department of Consumer Affairs notified the Legal Metrology (Indian Standard Time) Rules, 2026 on 27 August. The Rules make Indian Standard Time the common reference for legal, administrative, commercial and other official purposes. They will take effect 180 days after publication in the Official Gazette.

Updates

  • Common time reference: Government departments, businesses and institutions must align their time-dependent systems with Indian Standard Time.
  • Critical systems: The Rules cover time-stamping in banking, digital payments, telecom, transport, power systems and government records.
  • Indian timing sources: The framework allows NavIC and other approved Indian timing sources for secure time dissemination.

About One Nation, One Time

  • What it means: It does not create a new time zone. It makes Indian Standard Time the legally common time reference across the country.
  • Time authority: CSIR-National Physical Laboratory maintains Indian Standard Time using atomic clocks.
  • Delivery network: The initiative uses Indian infrastructure, including NavIC and a White Rabbit Technology-based demonstration network.
  • Security purpose: A domestic timing network reduces dependence on foreign satellite-based time sources for critical systems.