Igihe cyubu
Guma hamwe na timezone yisi yose! Urupapuro rwacu rwerekana ibihe byubu mumijyi minini kwisi, igufasha gutegura imbaraga zinama, guhuza imikoranire mpuzamahanga, no kuguma uhuza imigabane yose. Guma wubahiriza igihe kandi utondekanye hamwe namakuru yukuri kuva kumwanya utandukanye byose ahantu hamwe.
Ibihe byigihe: Amateka, Inyungu, nimbogamizi zigezweho zo guhuza isaha nisi
Ibihe byagenwe ni geografiya igabanya ubuso bwisi mubice bitandukanye, buri kimwe gisangira igihe kimwe. Sisitemu yateguwe kugirango icunge neza igihe cyisi yose kandi ihuze ibikorwa, cyane cyane mugihe cyitumanaho ryihuse no guhuza isi. Igitekerezo cy’ibihe cyagenwe bwa mbere na Sir Sandford Fleming, umushinga wa gari ya moshi wo muri Kanada, mu 1870. Mbere yo kubishyira mu bikorwa, umwanya wizuba waho wasangaga byari bisanzwe, biganisha ku rujijo rwinshi bitewe nuburyo butandukanye bwizuba rirashe nigihe izuba rirenze kuva ahantu hamwe bijya ahandi.
Isi igabanijwemo ibice 24 byigihe, buri kimwekimwe cya dogere 15 z'uburebure, hamwe na Meridian Prime (uburebure bwa dogere 0) nkibintu byerekeranye nigihe cya Greenwich (GMT). Nkuko umuntu agenda yerekeza iburasirazuba, buri gihe zone igereranya isaha mbere yicyayibanjirije, mugihe ugenda ugana iburengerazuba ibisubizo mugihe cyigihe kiri inyuma yisaha. Iyi mikorere ifasha kugumya guhuzagurika mugukurikiza igihe mukarere, birinda ko habaho ibihe, urugero, saa sita zishobora kugwa mugitondo cya kare ahantu hamwe na nyuma ya saa sita ahandi.
Ariko, ishyirwa mu bikorwa ryigihe ntirisanzwe kwisi yose kubera politiki, ubukungu, n'imibereho. Ibihugu bimwe, cyane cyane bifite uturere twinshi nk'Uburusiya, Kanada, na Amerika, bikoresha umwanya munini. Ibindi, akenshi ibihugu bito, birashobora gufata umwanya umwe nkibihugu bituranye hagamijwe imikoranire yubukungu cyangwa imibereho. Usibye ibihe bisanzwe, uturere tumwe na tumwe twubahiriza igihe cyo kuzigama amanywa (DST), aho amasaha ahindurwa imbere mugihe cyizuba no gusubira inyuma kugwa kugirango ukoreshe neza urumuri rusanzwe mumezi runaka.
Nubwo inyungu zigihe cyagenwe, ibibazo biracyahari. Mu turere twegereye imbibi zigihe, imijyi ndetse ningo zirashobora gukora mubihe bitandukanye, biganisha ku rujijo nibibazo bya logistique. Byongeye kandi, kuza kw’itumanaho n’ubucuruzi ku isi byongereye icyifuzo cyo guhuza ibikorwa mu bihe byagenwe, bituma biba ngombwa gusuzuma itandukaniro ryigihe mugihe uteganya inama, indege, cyangwa ibikorwa mpuzamahanga. Mugihe ikoranabuhanga rikomeje kugabanuka kwisi, akamaro ko kubungabunga ibihe nyabyo kandi bisanzwe bikomeje kuba ikintu cyingenzi mubuzima bwa none.