import java.util.Date; import com.soywiz.klock.DateTime; import com.soywiz.klock.TimeSpan; public class Main { public static void main(String[] args) { DateTime now = DateTime.nowLocal(); DateTime earlierDate = DateTime.createAdjusted(2021, 1, 1); TimeSpan daysBetween = now.minus(earlierDate); DateTime futureDate = now.plus(TimeSpan.days(7)); int year = now.year; int month = now.month1; int day = now.dayOfMonth; int hour = now.hours; int minute = now.minutes; int second = now.seconds; } }