jodd-core/src/main/java/jodd/time/TimeUtil.java
public static Calendar toCalendar(final LocalDateTime localDateTime) {
		return GregorianCalendar.from(ZonedDateTime.of(localDateTime, ZoneId.systemDefault()));
	}
public static Calendar toCalendar(final LocalDateTime localDateTime) {
		return GregorianCalendar.from(ZonedDateTime.of(localDateTime, ZoneId.systemDefault()));
	}
Converts local date time to Calendar.