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Option 1 states that the local time difference between Gujarat and Arunachal Pradesh is around two hours. This is correct as Gujarat is in the Western part of India, while Arunachal Pradesh is in the Eastern part. Since there is a time difference of approximately two hours between the Western and Eastern parts of India, this statement is accurate.
Option 2 states that Gujarat saves about one hour time over the Indian Standard Time (IST). This is also correct since Gujarat follows Indian Standard Time, which is based on the longitude of 82.5°E. Gujarat is positioned to the west of this longitude, resulting in it being one hour ahead of IST.
Option 3 states that Arunachal Pradesh loses about two hours time over the Indian Standard Time. This statement is not correct. Arunachal Pradesh is located in the Easternmost part of India, and as such, it is ahead of the Indian Standard Time by about one hour.
Option 4 states that the Indian Standard Time (IST) is advanced by five hours and 30 minutes against the Greenwich Mean Time (GMT). This statement is accurate as IST is GMT+5:30, which means it is five hours and 30 minutes ahead of the Greenwich Mean Time.
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