India is set to phase out GPS-based timekeeping and switch to an indigenous system powered by a network of five atomic clocks. Union Consumer Affairs Minister Prahlad Joshi recently announced the move, citing the need to protect critical infrastructure such as defence, navigation, and banking from potential foreign disruptions.
The decision reflects India’s growing commitment to technological self-reliance under the Atmanirbhar Bharat mission and aligns with global trends of reducing dependence on foreign-controlled systems.
Why the Shift from GPS Matters
Currently, India relies on the Global Positioning System (GPS), which is owned and operated by the United States government. While GPS delivers time accuracy up to 10 nanoseconds, it also exposes India to the risk of foreign denial or manipulation, especially in strategic situations.
Ashish Agarwal, a principal scientist at the National Physical Laboratory, pointed out a key historical example: during the Kargil War, the US refused to share GPS data with India, hampering military operations. This experience has pushed India to create a resilient, homegrown alternative.
Atomic Clocks Across India
The indigenous timekeeping system will be managed by five atomic clocks placed strategically in Guwahati, Bangalore, Ahmedabad, Faridabad, and Bhubaneswar. These highly calibrated clocks have been tested successfully and are expected to begin full operations soon.
Despite the technological change, Indian Standard Time (IST) will remain the same, maintaining its +05:30 offset from Coordinated Universal Time (UTC).
Critical Sectors to Benefit First
Consumer Affairs Secretary Nidhi Khare emphasized the importance of time accuracy in sectors such as equities, banking, and defence. “Even minute differences in time stamps can lead to legal disputes or failures in high-speed systems,” she said.
Once operational, it will be mandatory for commercial establishments, including financial institutions and tech firms, to switch to the new system for official timekeeping.
Towards Strategic Autonomy
With this move, India joins global powers like China and Russia in creating indigenous time systems. The initiative underlines India’s strategic goal of reducing reliance on external tech infrastructure.
Ultimately, replacing GPS-based time with a sovereign atomic clock network not only boosts national security but also positions India as a forward-looking nation in the global tech landscape.
