Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package DateTimeManagement; import org.joda.time.*; import org.joda.time.format.*; /** * * @author kajornjit.songsaen */ public class TimeIncrease { public void Increase30min() { DateTimeFormatter formatter = DateTimeFormat.forPattern("HH:mm"); LocalTime time = formatter.parseLocalTime("14:00"); time = time.plusMinutes(30); System.out.println(formatter.print(time)); } public void Increase30min(String inputTime) { DateTimeFormatter formatter = DateTimeFormat.forPattern("HH:mm"); LocalTime time = formatter.parseLocalTime(inputTime); time = time.plusMinutes(30); System.out.println(formatter.print(time)); } }