▁have ▁changed ▁their ▁way ▁of ▁choosing ▁candidate ▁lists ▁over ▁time . ▁ ▁E lections ▁are ▁nomin ally ▁held ▁every ▁four ▁years , ▁but ▁the ▁K ness et ▁or ▁prime ▁minister ▁can ▁decide ▁to ▁call ▁an ▁election ▁early ▁( s nap ▁election ). ▁Also ▁under ▁certain ▁circumstances ▁elections ▁may ▁be ▁post pon ed ▁past ▁four ▁years . ▁The ▁only ▁example ▁of ▁a ▁delay ▁was ▁the ▁election ▁for ▁ 8 th ▁K ness et ▁which ▁was ▁post pon ed ▁( for ▁two ▁months ▁due ▁to ▁the ▁Y om ▁K ipp ur ▁War ) ▁by ▁a ▁special ▁majority ▁in ▁the ▁K ness et . ▁E lections ▁are ▁nomin ally ▁scheduled ▁on ▁either ▁the ▁first ▁or ▁third ▁T ues day ▁of ▁the ▁Jewish ▁month ▁of ▁Ch esh van . ▁If ▁the ▁previous ▁year ▁was ▁a ▁Jewish ▁le ap ▁year ▁elections ▁are ▁held ▁the ▁first ▁T ues day ▁of ▁Ch esh van , ▁otherwise , ▁third ▁T ues day . ▁It ▁is ▁possible ▁for ▁the ▁interval ▁between ▁elections ▁to ▁be ▁longer ▁than ▁four ▁years , ▁and ▁up ▁to ▁five ▁years ▁if ▁the ▁previous ▁early ▁election ▁is ▁held ▁near ▁the ▁end ▁of ▁the ▁Jewish ▁month ▁of ▁Ch esh van . ▁As ▁of ▁ 2 0 1 5 , ▁the ▁nom inal ▁schedule ▁was ▁observed ▁only ▁four ▁times : ▁ 1 9 5 9 , ▁ 1 9 6 5 , ▁ 1 9 6 9 , ▁and ▁ 1 9 8 8 , ▁with ▁the ▁longest ▁interval ▁between ▁elections ▁being ▁ 1 0 1 ▁days ▁over ▁ 4 ▁years