Android difference between Two Dates
DateTimeUtils obj = new DateTimeUtils();
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("dd/M/yyyy hh:mm:ss");
try {
Date date1 = simpleDateFormat.parse("10/10/2013 11:30:10");
Date date2 = simpleDateFormat.parse("13/10/2013 20:35:55");
obj.printDifference(date1, date2);
} catch (ParseException e) {
e.printStackTrace();
}
//1 minute = 60 seconds
//1 hour = 60 x 60 = 3600
//1 day = 3600 x 24 = 86400
public void printDifference(Date startDate, Date endDate) {
//milliseconds
long different = endDate.getTime() - startDate.getTime();
System.out.println("startDate : " + startDate);
System.out.println("endDate : "+ endDate);
System.out.println("different : " + different);
long secondsInMilli = 1000;
long minutesInMilli = secondsInMilli * 60;
long hoursInMilli = minutesInMilli * 60;
long daysInMilli = hoursInMilli * 24;
long elapsedDays = different / daysInMilli;
different = different % daysInMilli;
long elapsedHours = different / hoursInMilli;
different = different % hoursInMilli;
long elapsedMinutes = different / minutesInMilli;
different = different % minutesInMilli;
long elapsedSeconds = different / secondsInMilli;
System.out.printf(
"%d days, %d hours, %d minutes, %d seconds%n",
elapsedDays, elapsedHours, elapsedMinutes, elapsedSeconds);
}
out put is :
startDate : Thu Oct 10 11:30:10 SGT 2013
endDate : Sun Oct 13 20:35:55 SGT 2013
different : 291945000
3 days, 9 hours, 5 minutes, 45 seconds
Android calculate days between two dates
Your code for generating date object:
Date date = new Date("2/3/2017"); //deprecated
You are getting 28 days as answer because according to Date(String)
constructor it is thinking day = 3,month = 2 and year = 2017
You can convert String to Date as follows:
String dateStr = "2/3/2017";
SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
Date date = sdf.parse(dateStr);
Use above template to make your Date object. Then use below code for calculating days in between two dates. Hope this clear the thing.
It can de done as follows:
long diff = endDateValue.getTime() - startDateValue.getTime();
System.out.println ("Days: " + TimeUnit.DAYS.convert(diff, TimeUnit.MILLISECONDS));
Please check link
If you use Joda Time it is much more simple:
int days = Days.daysBetween(date1, date2).getDays();
Please check JodaTime
How to use JodaTime in Java Project
How do I get difference between two dates in android?, tried every thing and post
You're close to the right answer, you are getting the difference in milliseconds between those two dates, but when you attempt to construct a date out of that difference, it is assuming you want to create a new Date
object with that difference value as its epoch time. If you're looking for a time in hours, then you would simply need to do some basic arithmetic on that diff
to get the different time parts.
Java:
long diff = date1.getTime() - date2.getTime();
long seconds = diff / 1000;
long minutes = seconds / 60;
long hours = minutes / 60;
long days = hours / 24;
Kotlin:
val diff: Long = date1.getTime() - date2.getTime()
val seconds = diff / 1000
val minutes = seconds / 60
val hours = minutes / 60
val days = hours / 24
All of this math will simply do integer arithmetic, so it will truncate any decimal points
Android/Java - Date Difference in days
Not really a reliable method, better of using JodaTime
Calendar thatDay = Calendar.getInstance();
thatDay.set(Calendar.DAY_OF_MONTH,25);
thatDay.set(Calendar.MONTH,7); // 0-11 so 1 less
thatDay.set(Calendar.YEAR, 1985);
Calendar today = Calendar.getInstance();
long diff = today.getTimeInMillis() - thatDay.getTimeInMillis(); //result in millis
Here's an approximation...
long days = diff / (24 * 60 * 60 * 1000);
To Parse the date from a string, you could use
String strThatDay = "1985/08/25";
SimpleDateFormat formatter = new SimpleDateFormat("yyyy/MM/dd");
Date d = null;
try {
d = formatter.parse(strThatDay);//catch exception
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Calendar thatDay = Calendar.getInstance();
thatDay.setTime(d); //rest is the same....
Although, since you're sure of the date format...
You Could also do Integer.parseInt()
on it's Substrings to obtain their numeric values.
date difference in days, in Android
Date#compareTo(Date)
see: http://developer.android.com/reference/java/util/Date.html
or you could use http://developer.android.com/reference/java/util/Calendar.html if you need more details about the date difference, e.g http://developer.android.com/reference/java/util/GregorianCalendar.html
Android Days between two dates
Please refer this code, this may help you.
public String getCountOfDays(String createdDateString, String expireDateString) {
SimpleDateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy", Locale.getDefault());
Date createdConvertedDate = null, expireCovertedDate = null, todayWithZeroTime = null;
try {
createdConvertedDate = dateFormat.parse(createdDateString);
expireCovertedDate = dateFormat.parse(expireDateString);
Date today = new Date();
todayWithZeroTime = dateFormat.parse(dateFormat.format(today));
} catch (ParseException e) {
e.printStackTrace();
}
int cYear = 0, cMonth = 0, cDay = 0;
if (createdConvertedDate.after(todayWithZeroTime)) {
Calendar cCal = Calendar.getInstance();
cCal.setTime(createdConvertedDate);
cYear = cCal.get(Calendar.YEAR);
cMonth = cCal.get(Calendar.MONTH);
cDay = cCal.get(Calendar.DAY_OF_MONTH);
} else {
Calendar cCal = Calendar.getInstance();
cCal.setTime(todayWithZeroTime);
cYear = cCal.get(Calendar.YEAR);
cMonth = cCal.get(Calendar.MONTH);
cDay = cCal.get(Calendar.DAY_OF_MONTH);
}
/*Calendar todayCal = Calendar.getInstance();
int todayYear = todayCal.get(Calendar.YEAR);
int today = todayCal.get(Calendar.MONTH);
int todayDay = todayCal.get(Calendar.DAY_OF_MONTH);
*/
Calendar eCal = Calendar.getInstance();
eCal.setTime(expireCovertedDate);
int eYear = eCal.get(Calendar.YEAR);
int eMonth = eCal.get(Calendar.MONTH);
int eDay = eCal.get(Calendar.DAY_OF_MONTH);
Calendar date1 = Calendar.getInstance();
Calendar date2 = Calendar.getInstance();
date1.clear();
date1.set(cYear, cMonth, cDay);
date2.clear();
date2.set(eYear, eMonth, eDay);
long diff = date2.getTimeInMillis() - date1.getTimeInMillis();
float dayCount = (float) diff / (24 * 60 * 60 * 1000);
return ("" + (int) dayCount + " Days");
}
Date difference in month , day
Edit: To get the months difference, you can use Calender class. Otherwise, use JodaTime library(linked at bottom of answer).
Calendar startCalendar = new GregorianCalendar();
startCalendar.setTime(startDate);
Calendar endCalendar = new GregorianCalendar();
endCalendar.setTime(endDate);
int diffYear = endCalendar.get(Calendar.YEAR) - startCalendar.get(Calendar.YEAR);
int diffMonth = endCalendar.get(Calendar.MONTH) - startCalendar.get(Calendar.MONTH);
int diffDay = endCalendar.get(Calendar.DAY_OF_MONTH) - startCalendar.get(Calendar.DAY_OF_MONTH);
Note that if your dates are 2013-01-31 and 2013-02-01, you get a distance of 1 month this way, which may or may not be what you want. To correct this, refer to this answer.
Before Edit
Just subtract the dates and calculate the milliseconds according to your needs
// Start Date : 01/14/2012 09:29:58
// End Date : 01/15/2012 10:31:48
public static void getDifference(Date d1, Date d2){
// HH converts hour in 24 hours format (0-23), day calculation
// must match with your date format
SimpleDateFormat format = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss");
try {
//in milliseconds
long diff = d2.getTime() - d1.getTime();
long diffSeconds = diff / 1000 % 60;
long diffMinutes = diff / (60 * 1000) % 60;
long diffHours = diff / (60 * 60 * 1000) % 24;
long diffDays = diff / (24 * 60 * 60 * 1000);
System.out.print(diffDays + " days, ");
System.out.print(diffHours + " hours, ");
System.out.print(diffMinutes + " minutes, ");
System.out.print(diffSeconds + " seconds.");
} catch (Exception e) {
e.printStackTrace();
}
}
You can also use joda-time-library and follow this tutorial's second step to implement it.
Calculate date difference in days in Android
I use this
public String getDateAgo() {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
try {
Date date = sdf.parse(createdAt);
Date now = new Date(System.currentTimeMillis());
long days = getDateDiff(date, now, TimeUnit.DAYS);
if (days < 7)
return days + "d";
else
return days / 7 + "w";
} catch (ParseException e) {
e.printStackTrace();
}
return "ERROR";
}
private long getDateDiff(Date date1, Date date2, TimeUnit timeUnit) {
long diffInMillies = date2.getTime() - date1.getTime();
return timeUnit.convert(diffInMillies, TimeUnit.MILLISECONDS);
}
Best way to compare dates in Android
Your code could be reduced to
SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
Date strDate = sdf.parse(valid_until);
if (new Date().after(strDate)) {
catalog_outdated = 1;
}
or
SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
Date strDate = sdf.parse(valid_until);
if (System.currentTimeMillis() > strDate.getTime()) {
catalog_outdated = 1;
}
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