मानक समय
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manak samay vah samay hai, jo kisi desh ya vistrit bhoo-bhag ke logoan ke vyavahar ke liye svikrit hota hai. yah us desh ke svikrit manak yamyottar ke liye sthaniy madhy samay hota hai. hamare apane sthanoan ke samay 'sthaniy samay' kahalate haian. inase hamari samay sanbandhi sthaniy avashyakata to poorn ho jati hai, kiantu ye any sthanoan ke liye upayogi nahian hote. isiliye 'manak samay' ki avashyakata p dati hai.
- manak samay ke prabhav mean yatayat sanchalan tatha deshavyapi samay ke karyakramoan ke sanchalan nitaant kathin haian.
- ajakal jis prakar hamara apane desh ke sthanoan se sanbandh hai, usi prakar vishv ke any deshoan se bhi hai.
- vishvavyapi vyavahar ko chalane ke liye grinavich ke madhy samay ko 'manak samay' mana gaya hai.
- grinavich se kisi bhi sthan ke poorv ya pashchim deshantar jnat hone se ham apane manak samay se any deshoan ka manak samay jnat kar sakate haian.
- bharat ka manak yamyottar grinavich se 82.5° poorv hai, jisaka arth hai ki hamara manak samay grinavich ke manak samay se sadhe paanch ghante age hai.
- bharat mean poorvi deshantar, jo ki ilahabad ke nikat naini se gujarati hai, ke samay ko manak samay mana gaya hai.
- yah samay grinavich samay se 5:30 ghanta age rahata hai.
- atah jab grinavich mean dopahar ke 12 baje hoan, to us samay bharat mean sham ke 5:30 bajeange.
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