Daylight savings time in India: Why the country doesn't change its clocks

Daylight savings time in India: Why the country doesn't change its clocks

You’ve probably seen the memes. Every March and November, the internet explodes with Americans and Europeans complaining about losing an hour of sleep or suddenly living in pitch-black darkness by 4:00 PM. If you're sitting in Delhi, Mumbai, or Bengaluru, you might feel a bit left out—or maybe just relieved. Daylight savings time in India isn't a thing. We don't "spring forward" or "fall back." We just... exist.

But it wasn't always this simple.

There's a weirdly persistent myth that India is too close to the equator to need a time shift. While it's true that tropical regions have less seasonal variation in day length, the real story involves war, colonial hangovers, and a massive geographical headache that continues to spark debates in Parliament today.

The brief, chaotic history of clock-shifting in India

Believe it or not, India actually experimented with DST.

During the Second World War, the British Raj implemented daylight saving measures to save energy and support the war effort. Between 1942 and 1945, the country shifted its clocks to stay ahead. It was a logistical nightmare for a country that was already struggling with various local "mean times." Bombay Time and Calcutta Time were still distinct entities back then, making the coordination of trains and telegrams a Herculean task.

Once the war ended and India gained independence in 1947, the government ditched the concept almost immediately. They settled on Indian Standard Time (IST), which is calculated based on the 82.5°E longitude line passing through Mirzapur, near Prayagraj.

It was a move for unity. One nation, one time.

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However, this "unity" has created a massive biological rift. India is a huge country. From the easternmost point in Arunachal Pradesh to the western edge of Gujarat, the sun rises and sets about two hours apart. Because we use a single time zone, a kid in Dong, Arunachal Pradesh, might see the sun come up at 4:30 AM in the summer, while someone in Dwarka, Gujarat, is still tucked in bed in total darkness.

Why the Northeast is still fighting for a change

If you talk to people in the "Seven Sister" states of Northeast India, the lack of daylight savings time in India—or a separate time zone—is a genuine grievance.

Think about the productivity loss.

In places like Assam, the sun sets incredibly early in the winter. By 4:30 PM, the workday is effectively over because it's dark. Yet, offices and schools follow the same IST as Mumbai. This results in massive electricity consumption as lights are switched on much earlier in the day. Tea gardens in Assam have actually taken matters into their own hands for decades. They use "Bagan Time" or "Tea Garden Time," which is set one hour ahead of IST.

It’s an informal, localized version of DST.

Researchers, including those from the National Institute of Advanced Studies, have argued that India could save nearly 2.7 billion units of electricity annually by simply shifting its time zone by half an hour or implementing a seasonal change. That’s a staggering amount of energy. Yet, the central government has consistently shot down the idea. The fear? Chaos on the railways and a potential surge in accidents at "border" towns where time zones would meet.

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The biological toll of a single time zone

We often ignore the health aspect of how we time our lives.

A fascinating study by Maulik Jagnani, an economist at the University of Colorado Denver, looked into how the timing of sunset affects Indian schoolchildren. He found that later sunsets (relative to the clock) actually led to less sleep for children. Why? Because kids stay up later when it’s light out, but school start times are fixed.

This leads to poorer test scores and lower educational attainment.

In Western India, where the sun sets much later on the clock than in the East, students are effectively more sleep-deprived. If daylight savings time in India were implemented—or if the country were split into two zones—this sleep gap might narrow. But for now, the "one nation, one time" mantra overrides the circadian rhythm of millions.

Honestly, the logistics of changing it now would be a nightmare. Imagine the software patches. Every smartphone, banking server, and flight schedule in a country of 1.4 billion people would need to sync perfectly. Given how we handle basic infrastructure sometimes, you can see why the government is hesitant to touch the clocks.

Comparing India to the rest of the world

Most countries near the equator, like Brazil or Indonesia, have either scrapped DST or never used it. The closer you are to the middle of the planet, the less the sun's schedule changes throughout the year.

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In London, the difference between the shortest day and the longest day is about 8 hours.
In Kanyakumari? It’s only about 45 minutes.

This is the primary scientific argument against daylight savings time in India. For the southern half of the country, the effort of changing clocks wouldn't yield enough "extra" daylight to justify the confusion. However, this argument falls flat when you look at North India. Cities like Srinagar or Shimla experience significant seasonal shifts.

The US and Europe are currently debating getting rid of DST altogether. Many experts there argue that the biannual "shock" to the system causes an uptick in heart attacks and traffic accidents. India, by sticking to a single, year-round time, actually avoids these specific health spikes. We’ve traded energy efficiency for simplicity and cardiac stability.

What you can do to optimize your own "Daylight Savings"

Since the government isn't going to change the clocks for you, you've basically got to do it yourself if you want to stay productive.

  • Audit your light exposure: If you're in East India, invest in blackout curtains to keep the 4:00 AM sun from waking you up too early. If you're in the West, use bright "daylight" LED bulbs in the morning to trick your brain into waking up.
  • The 15-minute shift: If you find the seasonal shift in sunset times affects your mood (Seasonal Affective Disorder is real, even in India), try shifting your personal schedule by 15 minutes every week during the winter to find a "sweet spot" for your productivity.
  • Remote work flexibility: If you work for a global company, use the lack of DST to your advantage. When the US "falls back," your 6:30 PM meeting might suddenly move to 7:30 PM. Plan your gym sessions or family time around these shifts in international schedules.
  • Energy check: During the peak of summer, particularly in North India, use the early morning light for heavy tasks. By the time the heat hits at 2:00 PM, you should be doing low-energy admin work.

The debate over daylight savings time in India isn't going away. Every few years, a fresh petition reaches the High Courts or a new study highlights the energy waste in the Northeast. But for the foreseeable future, 5:30 GMT is where we stay. It’s a quirk of our geography and our politics, a single heartbeat for a subcontinent that technically lives across two hours of sun.


Next Steps for Managing Your Time

To make the most of the current system, start by tracking your sleep quality against sunset times in your specific city. Use an app like SunCalc to see exactly when the "Golden Hour" occurs in your location. If you are a business owner with teams across India, consider allowing "staggered starts"—letting your Kolkata office start and end 30 minutes earlier than your Ahmedabad office. This internal "company DST" can significantly boost morale and reduce burnout without waiting for a change in national law.