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How to get current UTC or GMT date time in millis in android instead of getting device's current date time [duplicate]

This question already has answers here:
How can I get the current date and time in UTC or GMT in Java?
(33 answers)
Closed 5 years ago.
I am trying to get current UTC date time in millis.
But every code I used for this returns me the device's current date time.
When I chenge my device's date, time it shows me chenged one.
So, I want to get GMT/UTC date time so that it will show me correct date even if user changes the date, time of his/her device.
Codes I tried:
Calendar calendar = Calendar.getInstance();
long now = calendar.getTimeInMillis();
and
DateFormat df = DateFormat.getTimeInstance();
df.setTimeZone(TimeZone.getTimeZone("UTC"));
String gmtTime = df.format(new Date());
Date gmtDate = df.parse(gmtTime);
Actually I want to set an alarm at November 15 2017, 5 PM using AlarmManager, receive that event hide some activities in my app which I don't want to show after this date, time.
How can I acheive this?
Thanks in advance!

Use this ....
Calendar.getInstance(TimeZone.getTimeZone("UTC")).getTimeInM‌​illis()
for eg.
Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("GMT"));
long timeInMili = calendar .getTimeInMillis();
or
Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
long timeInMili = calendar .getTimeInMillis();

Try TimeUnit.MILLISECONDS.convert(System.nanoTime(), TimeUnit.NANOSECONDS);

long timestampMilliseconds =System.currentTimeMillis();
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("EEE, d MMM yyyy HH:mm:ss z", Locale.US);
simpleDateFormat.setTimeZone(TimeZone.getTimeZone("GMT"));
String stringDate = simpleDateFormat.format(new Date(timestampMilliseconds));
System.out.println(stringDate);
if do you want to get as utc just change the time zsone

There is no way to get the correct time from device independently, If you are using Google Location Provider then getTime() will return derived time from GPS signal, else use server time.

converting time from utc to device timezone and add 9 minute

I am having some doubts regarding the conversion of time from utc to device time zone.I am getting date from Server and that is in UTC. I convert that corresponding Time to my device Time zone. But my device time is Showing 10 minutes backwards. My requirement is that I need to add 9 minutes to my Device Time Zone. So if anyone knows the answer..please do help
DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
df.setTimeZone(TimeZone.getTimeZone("UTC"));
Date timestamp = new Date();
timestamp = df.parse(s);
df.setTimeZone(TimeZone.getDefault());
date.setText(tk.nextToken());

Android SimpleDateFormat is not parsing hours

when parsing using SimpleDateFormat the milliseconds of date object is not correct
Date locally=new SimpleDateFormat("H:mm").parse("03:00");
the locally milliseconds is 3600000 but the true result must be 3*60*60*1000=10800000

Parsing a timezone-less information like "03:00" to a global type like Date is always timezone-relevant. In your case parsing uses the default timezone of your system which has obviously an extra offset of two hours so you get the local time reduced by two hours, resulting in an UTC-timestamp of 1970-01-01T01:00Z.
It seems you want to interprete the input as kind of duration. Although a Date-object is naturally NOT a duration you might slightly misuse the Date-type this way:
SimpleDateFormat sdf = new SimpleDateFormat("H:mm");
sdf.setTimeZone(TimeZone.getTimeZone("GMT")); // interprete input in UTC (zero offset)
Date d = sdf.parse("03:00"); // timestamp equivalent to 1970-01-01T03:00Z
long durationInMillis = d.getTime(); // 10800000 ms relative to UNIX epoch

Getting Arizona time with getTime()

date= Calendar.getInstance();
Date currentDate = date.getTime();
String sDate = currentDate.toString();
This returns time EST. I need to change it to Arizona time which is tricky because Arizona does not have daylight savings time. Is there a short cut to making the changes or do I need to query a calendar to subtract two hours when Arizona is on MST and three hours when PST.

This returns time EST.
Well, Date.toString() will, if you're in EST at the moment. It's not part of the data stored within the Date - that's just an instant in time, with no idea what time zone or calendar system it might have started off in.
Your first two lines would be more simply written as:
Date currentDate = new Date();
You should use a DateFormat to convert the Date into a String. You can specify the time zone you want to use there. Do not start performing any arithmetic on the date yourself to add/remove offsets - that's a sign that you're heading in the wrong direction.

Converting milliseconds to Date object

I am having following code to convert milliseconds to Android Date object.
Date dateObj = new Date(milli);
But problem is that my milliseconds value is having GMT value added in it before i pass it to Date class, add when i print this date object i can see that date object is again adding GMT value in the milliseconds value and because of that my date is displayed as wrong.
So how can i generate Date object with out considering GMT value in it.
For example my milliseconds are 1385569800000 which is getting printed as below:
Wed, 27 Nov 2013 22:00:00 --> +5.30
But the current value of this time stamp without adding GMT is:
Wed, 27 Nov 2013 16:30:00
*UPDAE*
It is not just about printing the date in right format and with right date time.
But i want to use that date object to schedule TimeTask.
So basically i want to create Date object which has proper date time value in it with out adding extra GMT time added in it.

A Date is always in UTC. No need to change that.
When printing the date value, use SimpleDateFormat and call setTimeZone() on it before formatting the output string.
It is not just about printing the date in right format and with right date time.
But i want to use that date object to schedule TimeTask.
TimerTask is just a task and not its scheduling. Timer accepts a Date object for scheduling. The Date is in UTC there as well.

try my code if you a
long currentTime = System.currentTimeMillis();
TimeZone tz = TimeZone.getDefault();
Calendar cal = GregorianCalendar.getInstance(tz);
int offsetInMillis = tz.getOffset(cal.getTimeInMillis());
currentTime -= offsetInMillis;
Date date = new Date(currentTime);
it is work for me

You can try with joda-time API.
Joda-Time provides a quality replacement for the Java date and time classes. The design allows for multiple calendar systems, while still providing a simple API. The 'default' calendar is the ISO8601 standard which is used by XML. The Gregorian, Julian, Buddhist, Coptic, Ethiopic and Islamic systems are also included, and we welcome further additions. Supporting classes include time zone, duration, format and parsing.
http://joda-time.sourceforge.net/key_instant.html

A Date object simply represents a moment in time. Imagine you're on the phone to someone on a different continent, and you say "3...2...1...NOW!". That "NOW" is the same moment for both of you, even though for one person it's 9am and for the other it's 4pm.
You're creating a Date representing the moment 1385569800000 milliseconds after the Java epoch (the beginning of 1970, GMT). That is your "NOW", and it's fixed and unchanging. What it looks like converted into text, however, depends on which timezone you want to display it for. Java defaults to using GMT, which would be right if you were in Britain during the winter, but for (I'm guessing) India you want it in a different time zone. Laalto's answer shows you how to do that.

here is the code,that worked like charm for me:
public static String getDate(long milliSeconds, String dateFormat)
{
// Create a DateFormatter object for displaying date in specified format.
DateFormat formatter = new SimpleDateFormat(dateFormat);
// Create a calendar object that will convert the date and time value in milliseconds to date.
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(milliSeconds);
return formatter.format(calendar.getTime());
}