Indian Normal Time was launched on today 74 years in the past. However is one time zone sufficient for India?


Scientists have suggested that the north-eastern states should have a different time zone.


Scientists have prompt that the north-eastern states ought to have a special time zone.&nbsp | &nbspPhoto Credit score:&nbspiStock Pictures

Key Highlights

  • At current, the nation observes a single time zone based mostly on the longitude passing by 82°33′E.

  • India’s nationwide timekeeper, CSIR-NPL, estimates the nation’s potential financial savings in vitality consumption to be 20 million kWh a 12 months if it follows two time zones.

  • Earlier than independence, the nation was following three main time zones — Bombay, Calcutta and Madras Time.

India’s nationwide timekeeper, CSIR-NPL, estimates the nation’s potential financial savings in vitality consumption to be 20 million kWh a 12 months if it follows two time zones. When somebody asks you the time, you’d have the identical reply, whether or not you’re in Kibithu in Arunachal Pradesh or in Ghuar Mota within the Kutch area of Gujarat. As a result of each the areas are unified by the Indian Normal Time or IST.

On today 74 years in the past (September 1, 1947), the phenomenon of IST was launched to the nation as its official time. The usual time of 5 and a half hours forward of Greenwich Imply Time is noticed all through the nation, from Kang La to Cape Comorin, and from Kibithu to Ghuar Mota — the northern, southern, japanese and western extremes of India.

And this isn’t actually an excellent factor. We don’t say so, science does. For an excellent cause.

In the event you had been to journey throughout the breadth of the nation, it could take you 2 days, 21 hours and 36 minutes of continuous driving. India stretches rather less than 3,000 kilometres from east to west, spanning from 68°7’E to 97°25’E (a ramification of 29° longitude), with a two-hour distinction in imply photo voltaic occasions. That means that the solar rises two hours earlier in Arunachal Pradesh than in Gujarat.

Over time, folks within the north-eastern states have protested in opposition to this, demanding a separate time zone for the area. That is primarily as a result of the solar rises and units earlier there than the official working hours, and the states lose on the important daylight. The solar rises as early as 4 within the morning in summers. Nonetheless, the working hours for workplaces open at 10 within the morning. Hours of productiveness down the drain, in addition to affecting their our bodies’ circadian rhythm.

This was established by India’s nationwide timekeeper — Council of Scientific & Industrial Analysis’s Nationwide Bodily Laboratory (CSIR-NPL) — which maintains the IST. Scientists on the NPL printed a analysis article describing the need of two time zones. The analysis suggests two time zones — IST-I and IST-II, with the brand new one an hour forward of the present time zone. The brand new one will cowl the northeast area and might be demarcated from the opposite time zone at what the researchers name the “rooster neck” that connects the Northeast to the remainder of India.

The analysis paper additional establishes that India’s potential financial savings in vitality consumption might be as excessive as a whopping 20 million kWh a 12 months if it follows two time zones. How? Just by utilizing the numerous daylight, which are actually being wasted within the japanese area, and calling it a day there with the early sundown, resulting in decrease consumption of electrical energy. Moreover the electrical energy, we’d even have more healthy and happier individuals who adhere to their circadian rhythm. Get up and go to mattress with the solar. Even now, unofficially, the tea gardens of Assam have been following ‘Chaibagaan time’ which is one hour forward of the IST.

And this isn’t new to India. The system we adopted earlier than IST was of three time zones!

Earlier than independence, the nation was following the Bombay, Calcutta and Madras time zones — based mostly on the native occasions for the three presidencies. The time zones had been selected the idea of longitudes and had been adopted by all of the areas round them. Calcutta was set at Common Time Coordinated (UTC) or Greenwich Imply Time (GMT) +05.54, making it 24 minutes forward of the present IST. Madras was set at UTC+05:21 making it 9 seconds behind the present IST. Bombay was at UTC+04:51, making it 1:19 minutes behind the present IST. The Bagan Time (or the time for the northeast) was round UTC+06:30, making it an hour forward of the present IST.

And this is kind of what science suggests and the Northeast calls for. Nonetheless, as is the case with any change, the bottleneck comes from the political quarters. Even final 12 months when the query was posed within the Parliament, Dr Harsh Vardhan, the then Minister of Science & Know-how, Well being and Household Welfare and Earth Sciences responded saying, “…The matter was examined by a Excessive-Degree Committee (HLC). This committee comprising the Secretary, Division of Science and Know-how, Director, Council of Scientific and Industrial Analysis-Nationwide Bodily Laboratory (CSIR-NPL) and Chief Secretary, Authorities of Tripura. The HLC after contemplating the difficulty really helpful to not have two time zones for India for strategic causes.”

We’re not certain what the strategic causes are, however the technique certain isn’t working for the Northeast. So, until we have now two time zones, the snooze button will not be an possibility for the seven sisters and their brother.



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