Kunezinto ezintsha ezintsha esizitholayo ohlelweni olusha lwe-MacOS Sierra 1o.12 olusungulwe ngokusemthethweni yi-Apple emahoreni ambalwa edlule. Phakathi kwezinto ezintsha kakhulu esizithola ku-OS entsha sinemininingwane emincane noma ukulungiswa kwezicelo zomdabu esezenziwe isikhathi eside kodwa ukuthi ngokufika kohlelo olusha lokusebenza singase singanakwa noma sikhohlwe. Lesi sikhathi sizobona ukuthi kulula kanjani ukwengeza umcimbi wosuku ogcwele kukhalenda le-MacOS Sierra, i-OS El Capitan futhi ngicabanga ukuthi naku-OS X Yosemite naku-OS X Mavericks owokugcina ukubona ukuthi ukhona yini umsebenzisi oqinisekisayo kodwa ngicabanga ukuthi ngiyakhumbula ukuthi wayengowokuqala ukuhlanganisa inketho ngale ndlela.
Ngamafuphi, esikufunayo ngalokhu ukwenza ukuvuselelwa okuncane kwamathiphu esinawo futhi siwasebenzise ohlelweni olusha lwe-Apple. Iqiniso ukuthi kulokhu akuyona into entsha, kepha uma sikuthola kuthakazelisa setha i-aphoyintimenti yosuku lonke kukhalenda lakho le-Mac. Lo msebenzi ulula ukuwenza futhi umane udinga ukwakhiwa "komcimbi osheshayo" ekhalendeni, esikwenzayo ngenkinobho "+" okuvela ngaphezulu ngakwesokunxele kwewindi lekhalenda.
Uma sekuvuliwe, okumele sikwenze ukufaka usuku esinomsebenzi ngalo bese kuthi umsebenzi uqobo, isibonelo: Septemba 23 thatha imoto eshabhu. Kulokhu umsebenzi uzolondolozwa njengomcimbi wosuku lonke ekhalendeni futhi uma sidinga ukudala umcimbi wezinsuku ezimbalwa okumele sikwenze ukufaka usuku lokuqala nokuphela, ngokwesibonelo: kusuka ngo-Agasti 1 kuya ku-15 Amaholide. Ngale ndlela umcimbi uzokwenzelwa izinsuku ezigcwele phakathi nezinsuku esizibhalile.