groovy dependencies { implementation 'com.soywiz:klock:1.12.2' } import com.soywiz.klock.Date; import com.soywiz.klock.DateTime; import com.soywiz.klock.TimeSpan; import com.soywiz.klock.Year; Date date = Date.nowLocal(); DateTime dateTime = DateTime.nowLocal(); boolean isAfter = date1.compareTo(date2) > 0; boolean isBefore = date1.compareTo(date2) < 0; boolean isEqual = date1.equals(date2); DateTime addedDateTime = dateTime.plus(Year(1)); DateTime subtractedDateTime = dateTime.minus(TimeSpan(days = 7)); String formattedDateTime = dateTime.format("yyyy-MM-dd HH:mm:ss");