List of usage examples for java.time Duration plus
private Duration plus(long secondsToAdd, long nanosToAdd)
From source file:Main.java
public static void main(String[] args) { Duration duration = Duration.between(LocalTime.MIDNIGHT, LocalTime.NOON); System.out.println(duration.getSeconds()); duration = duration.plus(4, ChronoUnit.DAYS); System.out.println(duration.getSeconds()); }