Question: What time zone is Khmelnytsky Oblast located that validated the daylight saving time?
Paraphrase: Which time zone that Khmelntsky Oblast is in that confirm daylight saving time?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q171331 p:P421 ?s . ?s ps:P421 ?obj . ?s pq:P1264 wd:Q36669 }