what is the defference between the time ist and gmt????

Answer 1

Greenwich Mean Time (GMT)
Greenwich Time, World Time since 1884
Greenwich, England has been the home of Greenwich Mean Time (GMT) since 1884. GMT is sometimes called Greenwich Meridian Time because it is measured from the Greenwich Meridian Line at the Royal Observatory in Greenwich. Greenwich is the place from where all time zones are measured.
Clocks Change: Spring Forward & Fall Back (Fall = Autumn)
BUT
GMT remains the same all year around.

Check out the GMT timestamp to see how accurate your computer time is.

The Greenwich Meridian (Prime Meridian or Longitude Zero degrees) marks the starting point of every time zone in the World. GMT is Greenwich Mean (or Meridian) Time is the mean (average) time that the earth takes to rotate from noon-to-noon.

GMT is World Time and the basis of every world time zone which sets the time of day and is at the centre of the time zone map. GMT sets current time or official time around the globe. Most time changes are measured by GMT. Although GMT has been replaced by atomic time (UTC) it is still widely regarded as the correct time for every international time zone.

Where is Greenwich, England?
Longitude 0° 0' 0"

Latitude 51° 28' 38"N (North of the Equator)
Greenwich Mean Time is international time, the basis of the world time clock. GMT marks precision time and military time (sometimes called Zulu Time). Defines date and time and the exact time. The atomic time clock is adjusted by leap seconds to maintain synchronicity with GMT.

and

India Standard Time (IST)
India Time
What is the time in India now?
India is in Southern Asia, bordering the Arabian Sea and the Bay of Bengal, between Burma and Pakistan. The whole of India operates to a single Time Zone
India Standard Time Time = GMT+5.5

To open clock in new window press here
What time zone is India Standard Time in?
India Standard Time Standard Time is 5.5 hours (5 hours 30 minutes) ahead of Greenwich Mean Time (GMT+5.5).

Answer 2

IST is Indian Standard Time and GMT is Greenwich Meridian Time. The difference between IST and GMT is 5 1/2 hours.

Answer 3

IST is Indian Standard Time and
GMT is Greenwich Meridian Time...
That's for the abbreviation part.

In terms of time, IST is the standard time of country India. Throughout India, the people follow IST.
IST can be defined as 5 and half hours ahead of GMT.
GMT is defined from 0 longitude, i.e. GMT is the standard time at 0 longitude. For further reference please see a world map.

Answer 4

This Site Might Help You.

RE:
what is the defference between the time ist and gmt????

Answer 5

GMT (Greenwich Mean Time), mean solar time at the meridian from which time in other zones is calculated. it is given by 0 and falls on the on Britain.

IST(Indian Standard Time) is the time at 82' 30 N, which is taken as the standard time for the whole country to avoid confusion in flight timings etc.

the difference between these two is roughly of 2 hrs ie: Indians are 2 hrs ahead of the Britons.

Answer 6

Arises due to rotation of Earth. East faces the Sun first. We in India(IST)are 5-1/2 hours ahead fof GMT. To use day light hours effectively at times it could be 4-1/2 hours ahead also.

Answer 7

IST=indian standard time :Indian Standard Time (IST) is the time observed throughout India, with a time offset of . India does not observe daylight saving time (DST) or other seasonal adjustments, although DST was used briefly during the Sino–Indian War of 1962, and the Indo–Pakistani Wars of 1965 and 1971. In certain time-zone maps, IST is designated as E*.

Indian Standard Time is calculated on the basis of 82.5 °E longitude which just west of the town of Mirzapur, near Allahabad in the state of Uttar Pradesh. The latitude difference between Mirzapur and the Royal Observatory, Greenwich in the UK translates to an exact time difference of 5 hours and 30 minutes. Local time is calculated from a clock tower at the Allahabad Observatory though the official time servers are located in New Delhi.


GMT=greenwich mean time :the local time at the 0 meridian passing through Greenwich, England; it is the same everywhere
"Greenwich Mean Time" (GMT) is a term originally referring to mean solar time at the Royal Observatory, Greenwich in England. It is now often used to refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, although strictly UTC is an atomic time scale which only approximates GMT in the old sense. It is also used to refer to Universal Time (UT), which is the astronomical concept that directly replaced the original GMT.

Noon Greenwich Mean Time is not necessarily the moment when the Sun crosses the Greenwich meridian (and reaches its highest point in the sky in Greenwich) because of Earth's uneven speed in its elliptic orbit and its axial tilt. This event may be up to 16 minutes away from noon GMT (this discrepancy is known as the equation of time). The fictitious mean sun is the annual average of this nonuniform motion of the true Sun, necessitating the inclusion of mean in Greenwich Mean Time.

Historically the term "GMT" has been used with two different conventions for numbering hours. The old astronomical convention (before 1925) was to refer to noon as zero hours, whereas the civil and more modern convention is to refer to midnight as zero hours. The more specific terms "UT" and "UTC" do not suffer this ambiguity, always referring to midnight as zero hours.

Answer 8

IST is calculated according to the Indian Standard Time and GMT is calculated according to the Greenwich Meridian Time.

Answer 9

depends on what you mean by ist.
Ist stands for indian standard time also, and the diff. b/w ist and gmt is 5 and 1/2 hrs

Answer 10

Ist Time