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Dhaka Savings Time

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The entire nation of Bangladesh moved to Daylight Savings Time on Saturday June 20th 2009. [BBC]

Our US readers (with the exception of those in Arizona and Hawaii) are likely to be familiar with the concept of Daylight Savings Time. DST, of course, was primarily introduced for the purpose of utilizing daylight during the summer to keep down energy costs of lighting up homes and businesses. Bangladesh has instituted daylight savings time with the same purpose in mind.

to save power and alleviate the nation’s energy shortfall.
The government made the decision to introduce DST in Bangladesh to address the country’s energy shortages, particularly during the summer period.
It means businesses will open and close an hour earlier than usual.
This arrangement aims to save energy by reducing artificial lighting in the evening, when the demand for power traditionally peaks.

Meanwhile, Bangladeshis are scrambling to adapt to rising early. But DST is a great idea for Bangladesh, with it’s antiquated and overloaded power grids.

About 90 million out of 140 million people in Bangladesh do not have direct access to electricity and those who do have it suffer frequent cuts during the day, which can often last up to an hour each time.
The cuts are part of what the government refers to as a power-sharing programme, but the power crisis is a perennial problem which presents a serious challenge to businesses.

Adopting DST is no silver bullet for Bangladesh’s power problems, whose power grid needs some serious restructuring. But it’s certainly a step in the right direction.

DST is used in over 70 countries including Pakistan and, now, Bangladesh. Which raises the question, why not India? Delhi Savings Time has a nice ring to it. Large portions of India face the same problems as Bangladesh with antiquated power grids and frequent power cuts particularly in the hot summer months. For one, In more developed countries, questions are being raised on the accuracy of this claim, stemming primarily from rising cooling costs during summer. Moreover, there are India specific studies that show as much as 16% savings in power by advancing the Indian standard by 30 minutes instead of adopting DST.

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  • Santosh

    VM,
    By the same measure since India is in the same tropical zone as Bangladesh, do you think Bangladesh's jump to DST is a wasted move?

  • VM

    Yes, It sounds good therotically, but the implementation implications are too big.
    All of the systems have to be rehauled to accomodate this.

    Also, i think being a tropical country we actually do not need this DST. The sole purpose of DST is to keep work hours in sync witht eh sunrise and sunset times, taking benifit of sunlight.
    So, being in Canada, in winters the sun rises at around 6.00 AM and sets at around 4:00PM, whereas in summers it does the same at 4:00am and 9:00PM.
    In India we hardly have such a drastic daylight difference time.

    It makes no sense to me.

  • Santosh

    Shadows,
    LOL. True. Depending on whether the time gets adjusted forward or backward, people running on IST may be later or actually on time for a change.

    Vishal,
    Great point about the farmers.

  • I never thought of that!

    The pro's and con's of DST are not as straightforward as one might think though. Besides the obvious disadvantage of complexity (think computer systems, billing cycles, TV prime time etc.), it can adversely affects the farmers. It can mess up people's sleep and hence decrease efficiency to some extent. In Australia for example, the data showed that the electricity usage did not decrease after it implemented the DST in 2000.

    Implementing DST does sound like a good idea, at least in theory, and is surely something to consider. But we don't want to do it just because everyone else is doing it.

  • Bhai, logo ko Indian Standard Time samajh mein nahi aata, woh daylight saving time mein kitna confuse honge..

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