Calculate Difference between two times in Android

Question

I have two string variables such as StartTime and EndTime. I need to Calculate the TotalTime by subtracting the EndTime with StartTime.

The Format of StartTime and E

Answer 1

Have a look at DateFormat, you can use it to parse your strings with the parse(String source) method and the you can easily manipulate the two Dates object to obtain what you want.

DateFormat df = DateFormat.getInstance();
Date date1 = df.parse(string1);
Date date2 = df.parse(string2);
long difference = date1.getTime() - date2.getTime();

days = (int) (difference / (1000*60*60*24));  
hours = (int) ((difference - (1000*60*60*24*days)) / (1000*60*60)); 
min = (int) (difference - (1000*60*60*24*days) - (1000*60*60*hours)) / (1000*60);

String diffHours = df.format(hours);

For date difference

Date myDate = new Date(difference);

The to show the Date :

String diff = df.format(myDate);