pradhaan madhyaahn rekha

pradhaan madhyaahn rekha ki sthiti (lambavat)
greenavich shahar mein pradhaan madhyaahn rekha

pruthvi par 0° deshaantar par kheenchi gayi madhyaahn rekha pradhaan madhyaahn rekha, pradhaan yaamyottar, ya greenavich rekha kahalaati hai.[krupaya uddharan jodein] duniya ka maanak samay isi rekha se nirdhaarit kiya jaata hain (koradinetid yunivrsal time -UTC).[krupaya uddharan jodein] landan ke ek shahar greenavich isi rekha par sthit hain isaliya ise greenavich rekha bhi kehte hai. pradhaan madhyaahn rekha ke poorv ne sthit 180° tak ke deshaantar, poorvi deshaantar tatha pashchim ki or sthit deshaantar, pashchimi deshaantar kahalaate hain.[krupaya uddharan jodein]