Question

What do the teams GMT and IST mean​

Answer 1

Explanation:

GMT - GREENWICH MEAN TIME

IST - INDIAN STANDARD TIME

GMT is Greenwich Mean Time. It is the local time at zero degrees longitude in Greenwich, England and is used as the world reference for times at different longitudes around the globe. ... IST, in this context, is India Standard Time and is 5–1/2 hours later than GMT.....

Indian Standard Time is the time observed in India and Sri Lanka. It passes through Allahabad. India has a time of GMT+5:30. It's main importance is that it helps us in scheduling partys, functions, etc. which are connected throughout the country....

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Answer 2

Answer:

Greenwich line -  

Zero degree longitude.

Time at Greenwich is considered as the base for world time calculation.  

International date line -  

180 degree longitude.  

Deviated to avoid land areas and to pass through  ocean.  

The 24-hour time difference is experienced on crossing this line.