What longitude decides Indian time?

Which longitude in India is called?

Location of Mirzapur and the 82.5° E longitude that is used as the reference longitude for Indian Standard Time. Indian Standard Time (IST) is the time observed throughout India, with a time offset of UTC+5:30.

How has the Indian standard time been decided?

The Indian Standard Time (IST) has been decided according to the 82° 30′ E longitude which passes through Mirzapur (near Allahabad, Uttar Pradesh). Therefore, if it is 8 am in Mirzapur, then the whole of India will show 8 am in their clocks.

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.

Why does India need standard time?

India has a vast longitudinal extent. Since many meridians pass through it, it is important to adopt the local time of one central meridian of a country as the standard time for the country. Thus, we need a standard meridian for the country. In India 82 ½ °E longitude determines the standard time.

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Which longitude in India is called the Indian Standard Time shaala?

The standard time of India has been decided by the local time at 82.5° E longitude.

How many standard time exist in India?

The Republic of India uses only one time zone across the whole nation and all its territorries, called Indian Standard Time (IST), which equates to UTC+05:30, i.e. five and a half hours ahead of Coordinated Universal Time (UTC).

How is longitude related to time?

There is a close relation between longitude and time. The Earth makes one complete rotation of 360 degrees in 24 hours. It passes through 15 degrees is one hour or one degree in four minutes. Thus, there is a difference of 4 minutes of time for one degree of longitude.

Does longitude determine time?

The rate of the time at which the sun traverses over certain degrees of longitudes is used to determine the local time of an area with respect to the time at the Prime Meridian (0°Longitude).

How do you convert longitude to hours?

Step two: find your time zone

Here’s how longitude converts into your personal time zone: 15 degrees of longitude = 1 hour difference; 1 degree longitude = 4 minutes difference. 15 minutes of longitude = 1 minute difference; 1 minute of longitude = 4 seconds difference.