date « TimeZone « Java Data Type Q&A





1. java.util.Date is using TimeZone?    stackoverflow.com

I have 2 different computers, each with different TimeZone. In one computer im printing System.currentTimeMillis(), and then prints the following command in both computers: System.out.println(new Date(123456)); --> 123456 stands for the number came ...

2. Java - How to set timezone of a java.util.Date    stackoverflow.com

I have parsed a java.util.Date from a String but it is setting the local timezone as the timzone of the date object. The timezone is not specified in the String from which ...

3. Calculating sunrise and sunset with java    stackoverflow.com

I search a way to calculate sunrise and -set for a given timezone aka location. I would like something similar to Zend_Date. The idea is to have an application where ...

4. Awkward Java Date creation behaviour    stackoverflow.com

I've just came upon a very strange behaviour of Java's Date class when I try to create two dates consequently:

Date startDate = new Date(1282863600000L);
System.out.println(startDate);

Date endDate = new Date(1321919999000L);
System.out.println(endDate);
The output is respectively:
Fri ...

5. Does the java date.before function take into account the timezone?    stackoverflow.com

I have the timezone set on the server to BST (British Daylight Savings Time), and the date being passed into the function was calculated in UTC. On the Java Oracle site, it ...

6. How to set up a correct creation date with PDFBox?    stackoverflow.com

I'm learning how to generate PDF with PDFBox. So far, I managed to create the document and to modify basic meta data. I do have a problem with the date of creation, ...

7. Why is subtracting these two times (in 1927) giving a strange result?    stackoverflow.com

If I run the following program, which parses two date strings referencing times one second apart and compares them:

public static void main(String[] args) throws ParseException {
    SimpleDateFormat sf ...

8. new Date(long) gives different results    stackoverflow.com

When I run this code:

System.out.println( "XXX date=" + new Date( 1311781583373L ) );
I get this result in Eclipse's JUnit runner:
XXX date=Wed Jul 27 16:46:23 GMT+01:00 2011
and this result in Maven from ...





10. java.util.Date on different JVMs on different timezones    coderanch.com

If I serialize a java.util.Date object, and send it to another JVM that's on a different time zone, will the time zones be automatically accounted for? I'm assuming it does because in the JavaDocs, it says the Date object really just stores the milliseconds since 1/1/1970, 00:00:00 **GMT**. Theoretically, this means if I serialize a Date object that's 3pm Eastern Time, ...

11. Java TimeZone: How to get current date and daylight saving behaviour    coderanch.com

Hi, I have a country e.g. "Canada" and I know its offset i.e. GMT-8:00. My questions are: 1. How can I get the current date in Canada using Java TimeZone or any other method? 2. How can I know whether at this moment (at current datetime) daylight saving behaviour is being observed in Canada or not. (Basically if I get Country ...

12. Changing TimeZone of Date.    coderanch.com

I want to convert my Date timezone from local setting to say Zulu. First of all Date class does not support setting of TimeZone [method is depricated.] I have found a way to change the timeZone, but I am not very sure if its the best way to change the TimeZone. Following is the code which currently works fine. final String ...

13. TimeZone Date convertion    coderanch.com

14. java.util.Date on different JVMs on different timezones    coderanch.com

If I serialize a java.util.Date object, and send it to another JVM that's on a different time zone, will the time zones be automatically accounted for? I'm assuming it does because in the JavaDocs, it says the Date object really just stores the milliseconds since 1/1/1970, 00:00:00 **GMT**. Theoretically, this means if I serialize a Date object that's 3pm Eastern Time, ...

15. Changing the timezone of a date, not only display    coderanch.com

Actually the solution does not seem to work the way I need it, what I actually need is as follows: 1. I have an DB where I store information in timestamp format without timezone. 2. I get that timetsamp from db in the form of java.util.Date from hibernate and as discussed java.util.Date does not store the timezone 3. But the java.util.Date ...

16. Working with dates, timezones, zulu    coderanch.com





17. Comparing Dates of Two different timezones.    coderanch.com

Hi I need to write a Java logic which would tell whether two dates are equal or not. The problem is that the two dates which i am getting is in the String format from somewhere. e.g. These dates are equal (that is known) "15-SEP-06 10.27.31.436332 AM +05:30" "14-SEP-06 10.57.31.436213 PM -06:00" But what Java logic i should write which compare ...

18. Java TimeZone: How to get current date and daylight saving    coderanch.com

Thanks Chris. As you said there are different ids for Canada, can I make use of avaiable "offset" to judge which ID I need to use? If I get just one ID or list of all ids matching that offset I will use that and continue with rest of the way told by you. Thanks, Vikas

19. how to get the date in required timezone?    coderanch.com

Hi All, Can anybody please let me know how to get the date in required timezone? I tried with below java program, but it is returning date properly except timezone for the date as given in output. How to I get proper timezone as well? Appreciated your help. import java.util.Calendar; import java.util.Date; import java.util.GregorianCalendar; import java.util.TimeZone; public class DateConverter { public ...

20. Date according to timezone    coderanch.com

Hi, I am working on one application which is having different timezone then the servers its is hitting. So, when i fire a query from my timezone, the date get converted according to server timezone and i get wrong results. Can you please tell me that how should i create a date strictly in GMT timezone so that the date cannot ...

21. Time Zone Z associated with date    coderanch.com

IN xsd date is represented like 2011-08-02Z if you look closer you see "z" associated with the date. protected Date getExpiryDate( ){ Date date = null; DateFormat df = DateFormat.getDateInstance(DateFormat.LONG); df.setTimeZone(TimeZone.getTimeZone("GMT")); String endDate = df.format(getEndDateTime().getTime()); // here i am getting right data like August 2, 2011 SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy"); try{ date = sdf.parse(endDate); // here i am getting wrong ...

22. Timezones and Date calculation    forums.oracle.com

Hello, I am having the following problem: My pc is running in timezone CET, but I need to do some date/time calculations in different time zone. So I tried to set the timezone to something else, after that I would like to get the actual date/time of that timezone and then I need to add for. e.g. 4 hours to the ...

24. Date problem with IST(+5:30) timezone    forums.oracle.com

Three-letter time zone IDs For compatibility with JDK 1.1.x, some other three-letter time zone IDs (such as "PST", "CTT", "AST") are also supported. However, their use is deprecated because the same abbreviation is often used for multiple time zones (for example, "CST" could be U.S. "Central Standard Time" and "China Standard Time"), and the Java platform can then only recognize one ...

25. How to set Timezone in a date object    forums.oracle.com

26. Changing a Date TimeZone...    forums.oracle.com

I have a date object that printed looks like this: Tue Sep 30 22:00:00 GMT-02:00 2008 I got that Date from a .xls file, (in the file it looked like this by the way: 10/01/2008). I'm in a -2 timezone, so it seems I'm getting the Date in my timezone... However, if I manage to transform that date in a GMT0 ...

27. the issue is about time zone and date    forums.oracle.com

hi everyone. i have a string type "08/31/2008 14:33:05" time value, and the time's time zone is GMT-4:00. In my local the time zone is GMT+8:00 my question is how can i get the Date in GMT-4:00. the following code is the original code, there is a mistake, the dsJobStart is my local Date. I want to get the GMT-4:00 time. ...

28. How can I truncate the time zone from a Date object without using String?    forums.oracle.com

And besides, a Date object doesn't have a timezone in the first place. (It only looks that way when you display it in String format, but you explicitly rejected that scenario.) So there's nothing to truncate. Was that question supposed to be part of the implementation of a solution for something? If so it very likely isn't the right solution. Would ...

29. Finding a date in another timezone    forums.oracle.com

Hi everyone. I'm struggling with this one and hope you can help. Basically what i tried to do is this: Calendar cal = GregorianCalendar.getInstance(TimeZone.getTimeZone("Asia/Kuala_Lumpur")); cal.getTime(); I was hoping this would give me a date object with the date and time in Kuala Lumpur, but no. I have tried several different solutions, but it just doesn't work and i'm getting frustrated. How ...

30. Changing the TimeZone of a date    forums.oracle.com

Thanks for the reply. So if I have date with time 8:00 as I get from the DB/Hibernate and I want to assume that it is GMT time and when displaying I want the java.util.Date variable in which I store the date, to display the EST or EDT applicable instead, like say 3:00 or 4:00, then how can I do that? ...

31. java.util.Date and Timezone    forums.oracle.com

I am displaying the current date and time by creating a new java.util.Date object and then doing a toString() on it. But since the daylight savings time change a few weeks ago, the time has been an hour off. I am running version 1.6.0_03-b05 on a Xubuntu Linux machine. I have a set of machines that I set up at the ...

32. Problem in getting the Date object based on the TimeZone    forums.oracle.com

Hi, I need to create a Date object that holds the time of the specified TimeZone. I am using TimeZone and Calendar object for that, but when I call the Calendar object's getTime() method, it returns a Date object that holds the local time. Can somebody let me know what why? Here is what I uses in my code. TimeZone tz ...

33. Returning the TimeZone parsed from a date.    forums.oracle.com

Hello. I have a question about Time Zones. I need to parse data from an outside source, which will look like: "Wed July 4 GMT 2007". The string could contain any possible time zone. Also, there is no HH:MM:SS information. I have no control over this data; it comes from an external application. I can create a SimpleDateFormat object, and parse ...

34. Create a date in a specific Timezone    forums.oracle.com

Both a GregorianCalendar and a Date object store the number of milliseconds since 1st Jan 1970 UTC. When you set a particular timezone to a Calendar you influence the methods that get and set parts the date BUT you don't change the fact that the date is stored the number of milliseconds since 1st Jan 1970 UTC. When you use calendar1.getTime() ...

35. Timezone support for Brazil/East has wrong adjustment date....    forums.oracle.com

Hello, The JDK/JRE's tz files list the daylight savings change date for Brazil/East as occuring on 10/14 - 10/15 this year when (according to one of their stock exchanges) the change is really supposed to occur this year on 11/4 - 11/5. Is there an easy way to edit the TimeZone information files in the Java Runtime? I checked 1.5.0_09 and ...

36. Date / Timezone    forums.oracle.com

I'm guessing "BRST" is Brazilian summer time, while BRT is without the time shift. So, it could be that both are valid representations of the same time. As to whether you should be on summer time or not, you should know better than I. To get any kind of control of date/time formatting, use DateFormat and don't rely on the conversion ...

37. get the next days date for a specific timezone    forums.oracle.com

Hi, I need to get tomorrow's date(without time ie hh:mm:ss) for a specific timezone. public Date getTomorrowsDate(TimeZone tz) { Calendar now = Calendar.getInstance(tz); now.set(Calendar.HOUR_OF_DAY, 0); now.set(Calendar.MINUTE, 0); now.set(Calendar.SECOND, 0); now.set(Calendar.MILLISECOND, 0); now.add(Calendar.DATE, 1); return now.getTime(); } However, when this is run, the time is not zeroed out. If run as, System.out.println("tomorrows date(pacific): " + getTomorrowsDate(PACIFIC)); when the system timezone is set ...

38. Compare Date with Timezone    forums.oracle.com

Hi, I have a Date which is stored in the Database with the timezone like GMT, I have a java.util.Date which is selected in my UI from a Customized Calendar, I am converting this Date with timezone and want to compare this date with the date with timezone stored in the DB? How to accomplish this, please shed some light into ...

39. Date problem with timezones    forums.oracle.com

Hello I have very strange problem, i have two computers 1.client computer - on this machine timzone is set to AZST 2.server computer - on this machine timezone is set to GMT+4 location are set to United States , both machines so my swing application calls ejb2 method from client machine to server and passes date which is 31/08/2011(Wed Aug 31 ...