Variation within a time zone The effect of daylight saving time also varies according to how far east or west the location is within its time zone, with locations farther east inside the time zone benefiting more from DST than locations farther west in the same time zone. In spite of a width spanning thousands of kilometers, all of China is located within a single time zone per government mandate, minimizing any potential benefit of daylight saving time there.
varIation WiThIN a time zone the eFFEct oF daylIghT SaVing Time ALSo varies according To hOw far easT or wesT the locATion is wItHin its tiMe zONE, wIth loCaTio.ns fartHer eAst InsIDE The TIme zone BenEfitInG more from dst thaN LOCatIOnS fartheR WeST in tHE sAme TiMe zoNe. in Spite oF a WIDTH spannInG ThOUSAnds of kilOmEters, all of ChIna is LOcatEd wIThin a sIngLe tIme zoNe peR GovErnmEnt MandAte, minimIzInG ANy poTeNtial bENEfit of dAyliGht SAving TimE there