Develop Reference

How to print date in GMT format? [duplicate]

I have a string "2014-07-02T17:12:36.488-01:00" which shows the Mountain time zone. I parsed this into java.util.date format. Now I need to convert this to GMT format. Can anyone help me??
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
Object dd = null;
try {
dd=sdf.parseObject("2014-07-02T17:12:36.488-01:00");
System.out.println(dd);
} catch (ParseException e) {
e.printStackTrace();`enter code here`
}
SimpleDateFormat gmtDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
gmtDateFormat.setTimeZone(java.util.TimeZone.getTimeZone("GMT"));
System.out.println("Current Date and Time in GMT time zone:+ gmtDateFormat.format(dd));

There are a few problems in your code. For example, the format string doesn't match the actual format of the string you are parsing.
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSX");
Object dd = null;
try {
dd = sdf.parse("2014-07-02T17:12:36.488-01:00");
System.out.println(dd);
} catch (ParseException e) {
e.printStackTrace();
}
SimpleDateFormat gmtDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ssX");
gmtDateFormat.setTimeZone(java.util.TimeZone.getTimeZone("GMT"));
System.out.println("Current Date and Time in GMT time zone:" + gmtDateFormat.format(dd));
To print the current date in whatever timezone you like, set the timezone you want to use on the SimpleDateFormat object. For example:
// Create a Date object set to the current date and time
Date now = new Date();
DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSX");
df.setTimeZone(TimeZone.getTimeZone("GMT"));
System.out.println("Current date and time in GMT: " + df.format(now));
df.setTimeZone(TimeZone.getTimeZone("IST"));
System.out.println("Current date and time in IST: " + df.format(now));

android utc time conversion issue

I need to convert a UTC time string into my local time, the code works fine in my PC when I run it on Eclipse, however, I get incorrect results on Android. I am stuck, can someone help.
Below is the code I am using, an example input would be "2017-04-24 1:00 AM", this will yield a result of "11:00 AM" which is what I am expecting, however, it always return "10:00 AM" on Android.
public String convertUTCTime(String utcTime) {
Calendar cal = Calendar.getInstance();
TimeZone tz = cal.getTimeZone();
SimpleDateFormat sdf = new SimpleDateFormat("yyy-MM-dd HH:mm a");
sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
try {
Date date = sdf.parse(utcTime);
sdf = new SimpleDateFormat("HH:mm a");
sdf.setTimeZone(tz);
String format = sdf.format(date);
return format;
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return "Not applicable";
}

Look I prepared function:-
public static String getUTCDate(String timestamp, String DateFormat) {
SimpleDateFormat originalFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm aa", Locale.getDefault());
originalFormat.setTimeZone(TimeZone.getTimeZone("GMT"));
SimpleDateFormat targetFormat = new SimpleDateFormat(DateFormat, Locale.getDefault());
targetFormat.setTimeZone(TimeZone.getTimeZone("GMT"));
Date date = null;
String formattedDate = null;
try {
date = originalFormat.parse(timestamp);
formattedDate = targetFormat.format(date);
} catch (ParseException e) {
e.printStackTrace();
}
return formattedDate;
}
Get the value by calling -
Utils.getUTCDate("2017-04-24 01:00 AM", "HH:mm a")

Unable to convert String to date, Unparseable date exception

I am passing dateInString as "2015-07-30T14:30:00-04:00". But
it is throwing
java.text.ParseException: Unparseable date:
"2015-07-30T14:30:00-04:00" (at offset 0)
Here is the sample code:
private Date convertStringToDate(String dateInString){
if(dateInString!=null){
Date convertedDate=null;
SimpleDateFormat formatter = new SimpleDateFormat("EEE MMM dd HH:mm:ss zzz yyyy");
TimeZone timeZone = TimeZone.getDefault();
formatter.setTimeZone(timeZone);
try {
convertedDate = formatter.parse(dateInString);
} catch (ParseException e) {
e.printStackTrace();
}
return convertedDate;
}
else
return null;
}

I have solved it. Here is the date format-
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ");
Thanks everyone for your time :-)

Android Date format. from string to Date

I have a string like this: 2015-01-31 16:00:00 +0000 UTC, I want to parse this string to date object.
yyyy-MM-dd HH:mm:ss 'UTC'
but failed.

You can use the SimpleDateFormat for formatting the strings to date objects:
DateFormat originalFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss+z", Locale.ENGLISH);
DateFormat targetFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date date = null;
try {
date = originalFormat.parse("2015-01-31 16:00:00 +0000");
String formattedDate = targetFormat.format(date);
} catch (ParseException e) {
e.printStackTrace();
}

Parse Datetime to JAVA Date

im getting the SQL Server datetime (1 Jan 2013) form the SqlRowSet like
while (rs.next()) {
myBean.setDateProp(rs.getString(4));
}
the type of myBean DateProp is java.util.Date, is there a way to convert (1 Jan 2013) to java Date representation.
i have tried the following code
SimpleDateFormat sdf = new SimpleDateFormat("dd-MMM-yyyy HH:mm:ss.SSS");
Date date=new Date();
try {
date = sdf.parse("1 Jan 2013");
} catch (Exception e) {
e.printStackTrace();
}
and i get the ParseException
SEVERE: java.text.ParseException: Unparseable date: "1 Jan 2013"
any directions...

try this -
SimpleDateFormat sdf = new SimpleDateFormat("dd MMM yyyy");
Date date=new Date();
try {
date = sdf.parse("1 Jan 2013");
}catch (Exception e) {
e.printStackTrace();
}

Try
while (rs.next()) {
myBean.setDateProp(rs.getDate(4));
}

#Test
public void test() throws ParseException {
String dateString = "1 Jan 2013";
String dateString2 = "11 Jan 2013";
SimpleDateFormat sdf = new SimpleDateFormat("d MMM yyyy");
sdf.parse(dateString);
sdf.parse(dateString2);
}

You need to modify your Date formatter string to
SimpleDateFormat sdf = new SimpleDateFormat("dd MMM yyyy");
as your date string is in this format