I want to convince the architecture manager to include the joda time jar in our product.
Do you know any disadvantages in using it?
I think joda time needs to be constantly updated ... |
I'm creating a web based system which will be used in countries from all over the world. One type of data which must be stored is dates and times.
What are the ... |
Is there a API method in JodaTime to see whether a DateTime is within [start, end], i.e. the boundary is included?
Only thing I found was
new Interval(start, end).contains(dateTime) but this seems ... |
I'm using the Joda-Time library with Java. I'm having some difficulty trying to turn a Period object to a string in the format of "x days, x hours, x ... |
so I was having a problem parsing a date, using the JodaTime chronology IslamicChronology so wrote a small example to demonstrate my problem.
Here's the code:
import org.joda.time.Chronology;
import org.joda.time.format.DateTimeFormatter;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.chrono.IslamicChronology;
import java.util.Date;
/**
* ...
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How can I get the next friday with the Joda-Time API.
The LocalDate of today is today. It looks to me you have to decide whever you are before or after the ... |
I read (dont't know where anymore, but see here)
when using Jodatime you have to keep files up to date.
What kind of files? Why is that?
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I've read rumors that Joda Time is slated to be included in Java 7, but am having trouble locating a definitive source for this information. Will Joda Time be included in ... |
The javadoc for org.joda.time.format.ISODateTimeFormat.dateTime() is:
Returns a formatter that combines a full date and time, separated by a 'T' (yyyy-MM-dd'T'HH:mm:ss.SSSZZ). The time zone offset is 'Z' for zero, ... |
I'd love to be able to parse relative strings like now and yesterday and get JodaTime DateTimes. Is it possible? DateTimeFormat.forPattern and doesn't seem to support English relative times and I ... |
According to their website, the class DUration implements the ISO 8601
http://en.wikipedia.org/wiki/ISO%5F8601#Durations
But let see an example. It is a duration of 14min & 51sec.
In ISO 8601 those code are equivalent ... |
I would like to calculate a duration whereas 1 day will consist of 8 hours.
Is creating a new Chronology is the right approach ?
I did try to create a custom Chronology ... |
I've created a method that takes two dates (in milliseconds) and returns a sentence that indicates the duration between these two dates.
For the moment, I have this code:
public static String formatDuration(long ...
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I'm trying to work with a timeseries of monthly data. That is, there is a value for each month, and no specific date (or time) associated with it.
I could have arbitrarily ... |
I'm writing some clojure code, and I'm relying on Joda time for time handling. The problem is that I don't know what to import and the documentation isn't terribly clear ... |
I'm having trouble using Joda Time's PeriodFormatter. I want one to report days, hours, minutes and seconds but my attempt seems to be wrapping around weeks. What should I ... |
My time zone is CET (Berlin).
And while testing Joda's DateTime i noticed some strange things:
new DateTime(1893, 4, 1, 0, 0, 0, 0);
=> java.lang.IllegalArgumentException: Illegal instant due to time zone offset ...
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I'm considering using Joda Time.
I'm wondering if I should pay attention of what type of object my Interfaces are returning.
Returning Joda Objects from my interface signature on the service layer means ... |
I'm using the following snipped to find the begin and end of several time periods in Joda. The little devil on my left shoulder says thats the way to go... but ... |
- Why do we need three classes?
- Which one performs better?
- Why is dividing a Period or Duration or Interval instance not implemented? E.g.
p = p.divideBy(2);
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How to specify the format string to convert the date alone from string. In my case, only the date part is relevant
Constructing it as DateTime fails:
String dateString = "2009-04-17";
DateTimeFormatter formatter = ...
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What library can I use to calculate dates based on date expressions?
A date expression would be something like:
- "+3D" (plus three days)
- "-1W" (minus one week)
- "-2Y+2D+1M" (minus 2 years, plus one day, plus ...
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I have first time as string '12:00:00' and another '19:00:00'
next how to check time portion of the day is within these time values?
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I am looking for a Java library that handles conversion to/from GPS Time.
GPS Time has an epoch of 6 January 1980, and does not have leap seconds, ... |
I have a DataTime field that I need to see if it's 10 years or more in the past (Think of expiring certifications). I'm new to Joda, how is that done? ... |
I'm parsing third party log files containing date/time using Joda. The date/time is in one of two different formats, depending on the age of the log files I'm parsing.
Currently I have ... |
First, sorry this is so long. I probably don't need all the code, but wanted to be sure.
Second, my actual question is, am I doing something wrong, or is this a ... |
I got the answer:
It's very simple.
DateTimeFormatter fmt = DateTimeFormat.forPattern("MM/dd/yyyy");
String formattedDate = jodeLocalDateObj.toString( fmt );
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How come this test I wrote fails in jodatime 1.6.2? Is it a bug?
@Test
public void testIfJodaTimePeriodsHandlesPeriodTypesOtherThanMinutesAndHours() {
long twentyDaysInMillis = TimeUnit.MILLISECONDS.convert(20, TimeUnit.DAYS);
Period twoWeeks = new Period(twentyDaysInMillis, PeriodType.weeks());
...
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I have a legacy Java application, where its performance bottle neck is due to the usage of Calendar. As Calendar is a mutable object, we have to clone every-time we get ... |
I have never used JodaTime before, but answering this question I tried it and came up with this ugly code to unset all fields below day:
DateTime startOfMonth =
...
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I'm calling toString() (or difference.normalizedStandard().toString()) on a Period object, and getting "PT-10H0.317S"
Why is the default toString so inconvenient? What does this string even mean?
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let's assume I have following dates (in String):
2009-05-15T23:00:00
2009-05-15T23:00:00.000Z
2009-05-15
I don't care about the time and zone, only date is relevant for me. So I want to try to parse it with ... |
I'm looking for a proper serializable date-only class. Got a server in Central time zone, I want users in the Eastern to enter date as 2010-11-23, and users in Pacific to ... |
In my client, I have this code:
System.out.println("Java tz: " + TimeZone.getDefault());
System.out.println("Joda tz: " + ISOChronology.getInstance());
These two lines run one after another. I never set time zone or user.timezone manually, just rely ... |
Joda-time has an Interval class, which is a range between DateTimes. What can be used for a range of LocalDates?
I want an object that represents, ... |
I have an code like this
// old_api(Date date)
old_api(calendar.getTime());
Currently, I replace Calendar with Joda DateTime. I was wondering how I can get Java Date out from Joda DateTime?
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I have two LocalDates that represent some time interval. Now i have to get LocalDates of all fridays, that this interval contains.
Easiest way to do it?
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I thought I understand it, but apparently I don't. Can you help me make these unit tests pass?
@Test
public void second() {
assertEquals("00:00:01", OurDateTimeFormatter.format(1000));
}
@Test
public void minute() {
...
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I am using Joda library to get time period passed since a given timestamp:
public static String getTimePassedSince(Date initialTimestamp){
DateTime initDT = new DateTime(initialTimestamp.getTime());
...
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I have a field in a form to state the time duration of an event.
Say, the event is to last 15 mins. So the field will have the following value: 00:15
If ... |
I came across http://blog.joda.org/2009/11/why-jsr-310-isn-joda-time_4941.html.
1) I am currently migrating Java Calendar to joda-time. I was wondering, should I use threeten instead of joda-time? Is threeten production ready?
2) Can threeten library ... |
My input string is a PM time:
log(start);
// Sunday, January 09, 2011 6:30:00 PM
I'm using Joda Time's pattern syntax as follows to ... |
I want to convert a java.util.Date to JodaTime so as to carry out subtractions between dates. Is there a good concise way to convert from Date to JodaTime?
Thanks!
Kurt
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I'd like to produce Partials from Strings, but can't find anything in the API that supports that. Obviously, I can write my own parser outside of the Joda-Time framework and ... |
Are there any ways to easy format Joda DateTime objects in Freemarker? For example with Java dates, we could use the ?string and other directives.
I know I could call toDate ... |
We're creating a scheduling application and we need to represent someone's available schedule during the day, regardless of what time zone they are in. Taking a cue from Joda Time's Interval, ... |
Hey everyone I am trying to parse out a DateTime from a string that looks like "20110406080000.000[-4:EDT]" and am running into problems with the [-4:EDT]
DateTimeFormat.forPattern("yyyyMMddHHmmss.SSS[ZZ]").parseDateTime("20110406080000.000[-4:EDT]") results in the following error
java.lang.IllegalArgumentException: ...
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What is the simplest way to convert a JodaTime LocalDate to java.util.Date object?
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I have two DateTimes, one is the time 'since' and 'now'
What I need, is get the time between then.
My problem is into the format I want to get it:
Example:
since = '17 ... |
I want to use joda to parse datetime strings in emails. Unfortunately I get all kinds of different formats, for example
Wed, 19 Jan 2011 12:52:31 -0600
Wed, 19 Jan 2011 10:15:34 -0800 ...
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I want a new instance that is a copy. I could instantiate from integers but it seems there should be a more direct way. I could also use some ... |
I have a String:
Sun May 15 00:00:00 IST 2011
Now if I want to parse it into joda DateTime by the pattern:
EEE MMM dd 00:00:00 z yyyy
I am getting:
java.lang.IllegalArgumentException: Invalid format: "Sun ...
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I've have a problem trying to print a given period between two dates.
Let me show you the details, and then i'll put the code :
Date a = May, 20th ,
Date ... |
Given a DateTime object at 31-March-2011 and this code:
DateTime temp1 = new DateTime(2011, 3, 31, 12, 0, 0, 0);
DateTime temp2 = temp1.plusMonths(1);
DateTime temp3 = temp2.plusMonths(1);
after the execution
temp1 = 2011-03-31T12:00:00.000+02:00
temp2 = 2011-04-30T12:00:00.000+02:00
temp3 ...
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import org.joda.time.LocalDateTime;
import java.util.Date;
With this date or with the following ones it's all OK:
new LocalDateTime(new Date(0,0,1,2,30)) — 1900-01-01T02:30:00.000new LocalDateTime(new Date(111,4,24,19,51)) — 2011-05-24T19:51:00.000
But there is something incomprehensible with preceding dates:
new LocalDateTime(new Date(0,0,1,2,29,50)) — ... |
I have date as a string in the following format "04/02/2011 20:27:05". I am using the joda library and would like to convert it to DateTime object. I did:
DateTime dt = ...
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I'm currently testing out some webapp technologies in a java project and was wondering why the pages sometimes load fast and sometimes take almost 5s to load.
I finally found out that ... |
I'm using joda-time (1.6.2) on a project and one of the things I'm doing is getting the difference between a predicted time and an actual time. Sometimes this difference is ...
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I use jodatime to parse date time strings as follows:
public static void main(String[]args){
String s ="16-Jul-2009 05:20:18 PDT";
... |
Anyone know of a Java library that can parse time strings such as "30min" or "2h 15min" or "2d 15h 30min" as milliseconds (or some kind of Duration object). Can Joda-Time ... |
Assuming this is how you get the current time in Joda time:
DateTime now = new DateTime();
How do you calculate values for the variables dateTimeAtStartOfToday and dateTimeAtEndOfToday?
What I'm trying to ... |
I'm going to design an application, in which I need to get the exact time difference between two dates. Ex:
Date1:31/05/2011 12:54:00
Date2:31/05/2011 13:54:00
I tried using getTime() but I didn't get exact ... |
I am confused about why my date time formatting output for some time zones is changing on my environments.
I have a war, I run this war as a standalone war on ... |
Equivalent of following methods in Joda-Time
DateFormatSymbols #getMonths()
/**
* Gets month strings. For example: "January", "February", etc.
* @return the month strings.
*/
public String[] getMonths()
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I'm trying to use JODA to simply convert a numeric timestamp (a long representing Unix epoch time), to a Month Day, Year string.
Here's code I just ran a few seconds ago:
...
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I have a custom formatter...
// default our time zone to the machine local one.
private static final DateTimeZone LOCAL_TZ = DateTimeZone.getDefault();
// format of date (i.e., timestamp) is yyyy-MM-dd HH:mm:ss.S
private static final DateTimeFormatter ...
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I'm using the Joda DateTime object (per SO recommendations) heavily on the Java back-end of my application. But I've not figured out a very consistent way to go ... |
System.out.println( PeriodFormat.getDefault().print(Period.hours(1).plusMinutes(30).plusSeconds(60)));
The output from the above Joda PeriodFormatter is "1 hour, 30 minutes and 60 seconds".
I know that this is a fringe case, but is there a way to output this ... |
For example
DateTime dt=new DateTime(java.sql.Time.valueOf("00:00:00"));
dt.minusMinutes(20); // this line would have no effect!
The problem is that new DateTime set date at "January 1, 1970"
A fix could be setting actual date, then it ... |
I want to get the count back of DateTime that where within the correct range with Joda Time.
I have this version at the moment which is only good to check ... |
I am tired of using them, Every time I think now I know these APIs I find some thing contradicting, contriving !
I have read lot of evil about them, and ... |
Hi, I want to convert the ISOdate to the java.util.Date Object.....but i am getting the exception Object c = new ISO8601DateConverter().fromString("1994-01-01T00:00:00"); Converter con=(Converter)c; Calendar cal = Calendar.getInstance(); //Converter cpl=(Converter)c; Date d = (Date) con.convert(java.util.Date.class, "006-02-23T12:34:56"); This trows the following exception, Exception in thread "main" java.lang.ClassCastException: java.util.Date at com.chordiant.cs.dateformate.DateFormat2.main(DateFormat2.java:51) any help or suggesion is welcome |
What are you referring to: The "obvious" part? I meant that I had read numerous articles complaining about Date and Calendar, I had suffered from their clumsy API, I had had to fix strange bugs tracked down to using shared SimpleDateFormat instances; so, considering that date manipulations were central to this application, there was strong incentive to at least evaluate the ... |
75. Joda Time forums.oracle.comA better way to convert a Duration to millis is to use the getMillis() method: Duration duration = new Period(0, 5, 13, 0).toDurationFrom(new Instant()); long millis = duration.getMillis(); The toDurationFrom() method is needed because the length of a period varies according to the point that you measure it from when you consider a period of days or months (a month could ... |