How to add 10 minutes to my String time

Question

I have this time  String myTime    quot 14 10 quot    Now I want to add 10 minutes to this time  so that it would be 14 20 How can I achieve this

User · Answer

I would recommend storing the time as integers and regulate it through the division and modulo operators  once that is done convert the integers into the string format you require

User · Answer

Something like this      String myTime    14 10    SimpleDateFormat df   new SimpleDateFormat  HH mm     Date d   df parse myTime     Calendar cal   Calendar getInstance     cal setTime d    cal add Calendar MINUTE  10    String newTime   df format cal getTime       As a fair warning there might be some problems if daylight savings time is involved in this 10 minute period

User · Answer

You need to have it converted to a Date  where you can then add a number of seconds  and convert it back to a string

User · Answer

I used the code below to add a certain time interval to the current time       int interval   30        SimpleDateFormat df   new SimpleDateFormat  HH mm        Calendar time   Calendar getInstance         Log i  Time    String valueOf df format time getTime            time add Calendar MINUTE  interval        Log i  New Time    String valueOf df format time getTime

User · Answer

You have a plenty of easy approaches within above answers   This is just another idea  You can convert it to millisecond and add the TimeZoneOffset and add   deduct the mins hours days etc by milliseconds   String myTime    14 10   int minsToAdd   10  Date date   new Date    date setTime    Integer parseInt myTime split      0    60    Integer parseInt myTime split      1      date1 getTimezoneOffset    60000   System out println date getHours         date getMinutes     date setTime date getTime    minsToAdd  60000   System out println date getHours         date getMinutes       Output     14 10 14 20

User · Answer

I would use Joda Time  parse the time as a LocalTime  and then use  time   time plusMinutes 10     Short but complete program to demonstrate this   import org joda time    import org joda time format     public class Test       public static void main String   args            DateTimeFormatter formatter   DateTimeFormat forPattern  HH mm            LocalTime time   formatter parseLocalTime  14 10            time   time plusMinutes 10           System out println formatter print time                     Note that I would definitely use Joda Time instead of java util Date Calendar if you possibly can - it s a much nicer API

User · Answer

Use Calendar add int field int amount  method

User · Answer

Java 7 Time API      DateTimeFormatter df   DateTimeFormatter ofPattern  HH mm         LocalTime lt   LocalTime parse  14 10        System out println df format lt plusMinutes 10

[java] How to add 10 minutes to my (String) time?

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