▁states . ▁This ▁made ▁social , ▁commercial ▁and ▁official ▁relations ▁difficult ▁and ▁caused ▁some ▁confusion . ▁In ▁the ▁last ▁period ▁of ▁the ▁Ott oman ▁Empire , ▁some ▁studies ▁were ▁made ▁to ▁eliminate ▁this ▁difference . ▁▁ ▁First , ▁a ▁law ▁en act ed ▁on ▁December ▁ 2 6 , ▁ 1 9 2 5 ▁and ▁b anned ▁the ▁use ▁of ▁Hij ri ▁and ▁R umi ▁cal end ars . ▁Turkey ▁began ▁to ▁use ▁Mil adi ▁calendar ▁officially ▁on ▁January ▁ 1 , ▁ 1 9 2 6 . ▁One ▁calendar ▁prevent ed ▁the ▁confusion ▁of ▁use ▁of ▁multiple ▁cal end ars ▁in ▁state ▁affairs . ▁ ▁The ▁clock ▁system ▁used ▁by ▁the ▁contemporary ▁world ▁was ▁accepted ▁instead ▁of ▁the ▁clock ▁called ▁al atur ka , ▁which ▁was ▁adjust ed ▁according ▁to ▁the ▁sun set . ▁With ▁the ▁time ▁scale ▁taken ▁from ▁the ▁West , ▁one ▁day ▁was ▁divided ▁into ▁ 2 4 ▁hours ▁and ▁daily ▁life ▁was ▁organized . ▁ ▁With ▁a ▁change ▁made ▁in ▁ 1 9 2 8 , ▁international ▁figures ▁were ▁adopted . ▁A ▁law ▁adopted ▁in ▁ 1 9 3 1 ▁changed ▁the ▁old ▁weight ▁and ▁length ▁measurements . ▁Pre viously ▁used ▁measurement ▁units ▁such ▁as ▁ar sh in , ▁end aze , ▁ok ka ▁have ▁been ▁removed . ▁Instead , ▁meters ▁were ▁accepted ▁as ▁length ▁measurements ▁and ▁weight ▁as ▁weight ▁measures . ▁With ▁these ▁changes ▁in ▁length ▁and ▁weight ▁measurements , ▁unity ▁was ▁achieved ▁in ▁the ▁country . ▁The ▁International ▁System ▁of ▁Units ▁( known ▁as ▁metric )