3 importances of Indian Standard Meridian
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1 Points 1–3 are regarding the standard meridian . The standard meridian lies at 82 1/2 degrees east, passing through the confluence of three ancient rivers : Ganga , Yamuna and Saraswathi(which was understood to be submerged after a massive earthquake).
2 It is the de-facto reference for entire India’s time , whether you live at Porbandar or Port Blair.
3 Every pair of consecutive meridians differ by 4 minutes. So let’s calculate : (82.5 - 0) * 4 = 330 minutes --> 330 minutes / 60 minute / hour = (300 + 30) / 60 = 5 + 1/2 or GMT + 5:30 hrs
2 It is the de-facto reference for entire India’s time , whether you live at Porbandar or Port Blair.
3 Every pair of consecutive meridians differ by 4 minutes. So let’s calculate : (82.5 - 0) * 4 = 330 minutes --> 330 minutes / 60 minute / hour = (300 + 30) / 60 = 5 + 1/2 or GMT + 5:30 hrs
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