import java.time.OffsetDateTime;
import java.time.ZoneOffset;
import java.time.format.DateTimeFormatter;

class Main {
    public static void main(String[] args) {
        DateTimeFormatter dtf = DateTimeFormatter.ofPattern("uuuuMMddHHmmss'Z'Z");
        String strDateTime = "20220914171900Z-0700";
        OffsetDateTime odt = OffsetDateTime.parse(strDateTime, dtf);
        System.out.println(odt);

        // The same date-time at UTC
        OffsetDateTime odtUTC = odt.withOffsetSameInstant(ZoneOffset.UTC);
        System.out.println(odtUTC);
    }
}