how to compare two times in android

Question

Two Dates are Comparing but Time is not comparing properly. This is my Code

final String setdate = cursor.getString(cursor.getColumnIndex(cursor.getColumnName(4)));
        final String settime = cursor.getString(cursor.getColumnIndex(cursor.getColumnName(5)));
 Calendar calendar1 = Calendar.getInstance();
        SimpleDateFormat formatter1 = new SimpleDateFormat("dd/M/yyyy");
        String currentDate = formatter1.format(calendar1.getTime());

        Calendar calendar2 = Calendar.getInstance();
        SimpleDateFormat formatter2 = new SimpleDateFormat("h:mm");
        String currentTime = formatter2.format(calendar2.getTime());


        if(currentDate.compareTo(setdate)>=0)
           {
              if(currentTime.compareTo(settime)>=0) {


                    myCheckBox.setChecked(true);
                    myCheckBox.setEnabled(false);


               }

           }

How can I compare two times.In database date and time field are different.So help me please.

score 26 · Answer 1 · edited May 04 '16 at 13:48

26

Try this:

private boolean checktimings(String time, String endtime) {

    String pattern = "HH:mm";
    SimpleDateFormat sdf = new SimpleDateFormat(pattern);

    try {
        Date date1 = sdf.parse(time);
        Date date2 = sdf.parse(endtime);

        if(date1.before(date2)) {
            return true;
        } else {

            return false;
        }
    } catch (ParseException e){
        e.printStackTrace();
    }
    return false;
}

edited May 04 '16 at 13:48

Gustavo Morales

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answered May 04 '16 at 13:07

arshad shaikh

673
8
11

This is more helpful solution – Parth Patel Jan 09 '20 at 14:31

score 9 · Accepted Answer · answered Feb 19 '15 at 12:52

Calendar calendar1 = Calendar.getInstance();
SimpleDateFormat formatter1 = new SimpleDateFormat("dd/M/yyyy h:mm");
String currentDate = formatter1.format(calendar1.getTime());

final String dateString = cursor.getString(4);
final String timeString = cursor.getString(5);
String datadb =dateString+" "+timeString;

//  Toast.makeText(context,"databse date:-"+datadb+"Current Date :-"+currentDate,Toast.LENGTH_LONG).show();

if(currentDate.compareTo(datadb)>=0) {
    myCheckBox.setChecked(true);
    myCheckBox.setEnabled(false);
}

score 0 · Answer 3 · answered Feb 17 '15 at 05:11

0

Very Simple. Convert both the value time1 and time2 in millisecond or minute and measaure difference.

OR

This Link for function might help you. Good Luck.

answered Feb 17 '15 at 05:11

iOSNoob

1,420
2
16
30

score 0 · Answer 4 · answered Feb 17 '15 at 05:19

0

I think you're asking how to compose a datetime from two separate fields of date and time. It's pretty simple. You can use your SimpleDateFormat to do it:

    final String dateString = cursor.getString(4);
    final String timeString = cursor.getString(5);

    SimpleDateFormat sdf = new SimpleDateFormat("dd/M/yyyy h:mm");
    Date dbDate = sdf.parse(dateString + " " + timeString);

    int compareToNow = new Date().compareTo(dbDate);

answered Feb 17 '15 at 05:19

Steve K

4,863
2
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41

how to compare current date and current time first compare date than it's go to time look like if(dateString.compareTo(currdate)){ if(timeString.compareTo(cuuTime){ //code}} – Feb 17 '15 at 05:27
A java `Date` is a timestamp. It encompasses both a date and a time. If you have two different fields for 'date' and 'time' in your database, you can turn both into a single Java `Date` using the `SimpleDateFormat` class as I did above. By default, creating a `new Date()` like I did above creates a `Date` instance set to the current system time. So the last line in my example compares the current system timestamp to the date you parsed from your database fields. – Steve K Feb 17 '15 at 05:31
Calendar calendar1 = Calendar.getInstance(); SimpleDateFormat formatter1 = new SimpleDateFormat("dd/M/yyyy h:mm"); String currentDate = formatter1.format(calendar1.getTime()); final String dateString = cursor.getString(4); final String timeString = cursor.getString(5); String datadb =dateString+" "+timeString; if(currentDate.compareTo(datadb)>=0) { myCheckBox.setChecked(true); myCheckBox.setEnabled(false); } – Feb 17 '15 at 10:15
You should not use Strings to compare dates. You will find that, for instance, "01/12/2015" comes out as being LESS than "31/01/1979" – Steve K Feb 17 '15 at 22:37

score 0 · Answer 5 · edited Jul 03 '19 at 10:18

public static boolean isTimeGreater(String date, String time) {
    Date currentTime, pickedTime;
    SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy HH:mm");
    String currentTimeString = sdf.format(new Date());

    try {
        currentTime = sdf.parse(currentTimeString);
        pickedTime = sdf.parse(date + " " + time);


        Log.e("Ketan", "Current Date: " + currentTime);
        Log.e("Ketan", "Picked Date: " + pickedTime);


        /*compare > 0, if date1 is greater than date2
        compare = 0, if date1 is equal to date2
        compare < 0, if date1 is smaller than date2*/

        if (pickedTime.compareTo(currentTime) > 0) {
            Log.e("Ketan", "Picked Date is Greater than Current Date");
            return true;
        } else {
            Log.e("Ketan", "Picked Date is Less than Current Date");
            return false;
        }
    } catch (ParseException e) {
        e.printStackTrace();
    }

    return true;
}

score -1 · Answer 6 · answered Feb 17 '15 at 05:13

In Java there is a method which you can compare two date and time

For you have to format your date and time in DATE format in JAVA.

After that use below code

date1.compareTo(date2);

Hope above code will help you.

Let me know if you need more help from my side.

how to compare two times in android

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