- Why in news
- On 16 July 2026, Union Minister Pralhad Joshi commissioned a White Rabbit-based Indian Standard Time dissemination demonstration network at RRSL, Bengaluru. The release was posted on 18 July 2026.
- What it is
- White Rabbit is a technology that distributes very precise time and frequency over fibre-optic Ethernet networks. It extends the Precision Time Protocol with synchronous Ethernet and phase measurement to reach sub-nanosecond accuracy. It was first developed at CERN, and India is using it to spread national time from its reference clocks.
- Where and when
- The demonstration network was commissioned at the Regional Reference Standard Laboratory, Bengaluru, on 16 July 2026.
- Who developed it
- The Department of Consumer Affairs, CSIR-NPL and ISRO developed it jointly.
- Verification link
- Secure IST dissemination was verified between RRSL Bengaluru and NSE Chennai, with SEBI, NSE and BSNL as partners.
- Target sectors
- It is designed for banking and financial markets, telecom, power, transport, digital governance and other strategic infrastructure.
- Initiative name
- The project advances the government's One Nation, One Time initiative.
- Origin of White Rabbit
- White Rabbit was developed at CERN as an open-hardware project for accurate timing.
Don’t confuse with UTC (NPLI) vs UTC: UTC is the international time scale kept by BIPM. UTC (NPLI) is India's local realisation of it at CSIR-NPL, to which IST is traced.
Don’t confuse with Precision Time Protocol vs White Rabbit: PTP is the general network time-sync protocol. White Rabbit is an enhanced version that adds hardware measures for sub-nanosecond accuracy.
Science and technology: 57 Prelims questions since 2013; most test the concept behind the news, not the news itself. In Mains, 12 news-triggered questions.
Why it matters
- Gives financial markets, telecom and power grids a trusted national time source, which improves cyber resilience.
- Reduces dependence on foreign timing sources such as GPS, and supports self-reliance.
- Supports fair trade and consumer protection through legally traceable time.
Problems
- Needs dedicated fibre links and costly hardware, so scaling beyond demonstration is hard.
- Users must adopt the system and align standards and regulation, such as financial-market time-stamping rules.
Way forward
- Expand the network in phases to more sectors and cities, with backup links.
- Set standards and regulatory mandates for time traceability in critical sectors.
Put in your answer
One Nation, One Time: Example of an indigenous digital public infrastructure for secure national time synchronisation.
- 2015Mains GS3 · Q11Explain standard and precision positioning systems in the GPS era, and IRNSS advantages for India.
- 2018Mains GS1 · Q4Why is IRNSS needed, and how does it help in navigation?
UPSC’s own questions that come close to this issue, from our Prelims and Mains banks.
No practice question for this one; the card may still help an answer. Why: New technology with a concept angle, but narrow demonstration network; Prelims question unlikely.
Source: PIB, Ministry of Consumer Affairs, Food & Public Distribution, 18 Jul, 17:37 IST · Release 291394
Worth revising until Prelims 2028: most news questions come within two years of the event.