import java.time.*;

Dmitry, [25.09.20 14:12]

public LocalDate convertToLocalDate(Date dateToConvert) {

return dateToConvert.toInstant()

.atZone(ZoneId.systemDefault())

.toLocalDate();

}

Dmitry, [25.09.20 14:14]

public Date convertToDate(LocalDate dateToConvert) {

return java.util.Date.from(dateToConvert.atStartOfDay()

.atZone(ZoneId.systemDefault())

.toInstant());

}

import java.time.LocalDate;
import java.time.Period;
import java.time.format.DateTimeFormatter;

DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd.MM.yyyy");
LocalDate startDate = LocalDate.parse("28.01.2009", formatter);
LocalDate endDate = LocalDate.parse("05.03.2013", formatter);
Period period = Period.between(startDate, endDate);
System.out.println(period.getYears()); // 4
System.out.println(period.getMonths()); // 1
System.out.println(period.getDays()); // 5