Why is India on a half hour time zone?

Why is India’s time zone weird?

Here’s why. India stretches 3,000km (1,864 miles) from east to west, spanning roughly 30 degrees longitude. This corresponds with a two-hour difference in mean solar times – the passage of time based on the position of the sun in the sky. The US equivalent would be New York and Utah sharing one time zone.

Why are some time zones half hour?

Nowhere else in all of North America does a jurisdiction deviate from UTC on the half-hour, according to Basementgeographer.com. The half hour is needed because it sits above Atlantic Standard Time, so it allows for the sun to be directly overhead at 12:10 p.m. rather than 11:40 a.m., Basementgeographer.com said.

Why does India have a different time zone?

This is because India is in the middle of the longitude of 82.5° E. After it became an independent country in 1947, India decided to be 30 minutes between the two countries which are Bangladesh and Pakistan. The time in Pakistan is set to UTC +5:00, while Bangladesh sets its time zone to UTC +6:00.

Which country has opposite time of India?

Nepal is 5 hours and 45 minutes ahead of GMT, because it sets the meridian of Nepal Standard Time at Gaurishankar, a mountain east of Kathmandu. The odd time difference between Nepal and India has resulted in a national joke that Nepalis are always 15 minutes late (or, Indians are 15 minutes early).

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Is India a day ahead or behind?

India Time Zone

IST is five and a half hours ahead of Coordinated Universal Time (UTC)/Greenwich Mean Time (GMT). India does not observe Daylight Saving Time (DST).

Why does Australia have half hour timezones?

In its colonial days South Australia was on a central time zone – an hour behind the east – until 1899. Under pressure from the chamber of commerce to adopt eastern standard time (EST), the government of the day came up with a compromise that put clocks 30 minutes behind those on Australia’s eastern seaboard.

Why are Australian time zones so weird?

Continental Australia is divided into three standard time zones, Western, Central and Eastern. … With Western Time at UTC+8:00 and Central Time at UTC+9:30, splitting the difference makes the so-called Central Western Time UTC+8:45. Yes, a time zone that’s based not on the hour or the half-hour, but on the quarter hour!

What are the 5 major time zones?

UTC replaced Greenwich Mean Time on 1 January 1972 as the basis for the main reference time scale or civil time in various regions.

  • Pacific Time (PT) Pacific Standard Time (PST) (UTC-8) …
  • Mountain Time (MT) Mountain Standard Time (MST) (UTC-7) …
  • Central Time (CT) Central Standard Time (CST) (UTC-6) …
  • Eastern Time (ET)

Does India need 2 time zones?

India is geographically the second-largest country not to have multiple time-zones India stretches from 97 degree 25 minute East in Arunachal to 68 degree 7 minute East in Gujarat — almost 30 degrees of longitude which is more than enough to have two time-zones.

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Does India have two time zones?

The study said that technically it is feasible to have two time zones and two ISTs in India. … At present, the country observes a single time zone based on the longitude passing through 82°33′E. Interestingly, before independence the country was following three major time zones- Bombay, Calcutta and Madras Time.

Does India change their clocks?

Japan, India, and China are the only major industrialized countries that do not observe some form of daylight saving. … Since the daylight hours are similar during every season, there is no advantage to moving clocks forward during the summer.