Adding n hours to a date in Java?

user_432541 0
Viewed 303516

How do I add n hours to a Date object? I found another example using days on StackOverflow, but still don't understand how to do it with hours.

date java
16 Answers

This code worked in Java 8.No additional libraries were not needed.

  public static  String  getCurrentDatetimePlusNoOfHours(int numberOfHours)  {
        String futureDay = getCurrentDatetime();  // Start date
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Calendar c = Calendar.getInstance();
        try {
            c.setTime(sdf.parse(futureDay));
        } catch (ParseException e) {
            e.printStackTrace();
        }
        c.add(Calendar.HOUR, numberOfHours);  // number of hours to add, if it's minus send - value like -4
        futureDay = sdf.format(c.getTime());  // dt is now the new date
        return futureDay;
    } 

Call the method
getCurrentDatetimePlusNoOfHours(4));
user_21757040
Related