I have been looking at the above question and have most of it correct.
I am going to get a datetime in Zulu, and then will want to output that format.
My first go is just as simple as:
DateFormat format = new DateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'");
My issue I am having is the T and Z. Obviously T is used to separate the date from the time and the Z is representative of Zulu time.
That being said the users will be entering a datetime in Zulu, so it wont need to be converted from Local to Zulu, so i was not sure if 'Z' is an acceptable result. I was not sure if there is a different want to handle this, or if my result was the best answer.
Try this package, Jiffy.
String isoFomart = Jiffy().format(); // This will return ISO format from now
You can also add your DateTime object
String isoFomart = Jiffy(DateTime.now()).format(); // This will also return ISO format from now
Hope this helped
The DateTime object has a method called: toIso8601String which is used to return an ISO formatted string. The 'Z' will be added if isUTC is true, otherwise the result will not have the Z in it.
Make sure that the DateTime object itself is correctly set to UTC as if you look in the constructor for the class will tell you a lot of the defaults are local with the exception of the DateTime.utc() static function.
In that concept, you dont really need a DateFormat use to define an iso string.
Related
let's say I have a DateTime object and I want to display it in the correct local format.
If I do the following on a German device I get this:
dateTime.toLocal().toString()
// Prints
2022-05-28 23:29:19.518
However, I would expect or desire more something like this for a German device: 28.5.2022 23:29:19
I know that I can format the DateTime but that would just be hardcoding it for a certain locale.
Weirdly enough all the solutions that I found for this on StackOverflow are either hardcoding the format or only apply to Dart, not Flutter.
What is the correct way to display a local datetime in Flutter?
You can use this package intl and localise dates like
var format = DateFormat.yMd('ar');
var dateString = format.format(DateTime.now());
Using the intl package which was mentioned here already, this has been working well for me so far:
DateFormat dateTimeFormat = DateFormat.jm(Localizations.localeOf(context).toString());
DateTime dt = DateTime.fromMicrosecondsSinceEpoch(entity.syncDateTime);
dateTimeFormat.format(dt);
To get outputs which are not yet supported I, for example, concat a ymd formatted DateTime string with a jm formatted DateTime string.
I am retrieving a date from a database in the following format:
vardate = '01/20/2017 09:20:35' - mm/dd/yyyy hh:mm:ss
I want to convert it to the format dd-mm-yyyy hh:mm:ss
Can I get some guidance on how I could get the format I want?
Date formatting in Lua is pretty simplistic. If you only need to convert it from one format to another, and that format does not change, you could simply use string.match:
function convertDate(vardate)
local d,m,y,h,i,s = string.match(vardate, '(%d+)/(%d+)/(%d+) (%d+):(%d+):(%d+)')
return string.format('%s/%s/%s %s:%s:%s', y,m,d,h,i,s)
end
-- Call it this way
convertDate('01/20/2017 09:20:35')
If you need something more involved, I suggest using an external library.
function ConvertDate(date)
return (date:gsub('(%d+)/(%d+)/(%d+) (%d+:%d+:%d+)','%2-%1-%3 %4'))
end
-- test
print(ConvertDate('01/20/2017 09:20:35'))
I'm currently working with embarcadero c++, this is the first time I'm working with it so it's completely new to me.
What I'm trying to achieve is to get the current date, make sure the date has the "dd/MM/yyyy" format. When I'm sure this is the case I want to add a month to the current date.
So let's say the current date is 08/18/2016 this has to be changed to 18/08/2016 and then the end result should be 18/09/2016.
I've found that there is a method for this in embarcardero however I'm not sure how to use this.
currently I've only been able to get the current date like this.
TDateTime currentDate = Date();
I hope someone will be able to help me out here.
I figured it out.
After I've searched some more I found the way to use the IncMonth method on this page.
The example given my problem is as follows:
void __fastcall TForm1::edtMonthsExit(TObject *Sender)
{
TDateTime StartDate = edtStartDate->Text;
int Months = edtMonths->Text.ToInt();
TDateTime NextPeriod = IncMonth(StartDate, Months);
edtNextPeriod->Text = NextPeriod;
}
After looking at I changed my code accordingly to this
TDateTime CurrentDate = Date();
TDateTime EndDate = IncMonth(CurrentDate, 1);
A date object doesn't have a format like "dd/MM/yyyy". A date object is internally simply represented as a number (or possibly some other form of representation that really isn't your problem or responsibility).
So you don't have to check if it's in this format because no date objects will ever be in this format, they simply don't have a format.
You will have to do additions/subtractions on the Date object that the language or library gives you, THEN (optionally) you can format it to a human-readable string so it looks like 18/08/2016 or 18th of August 2016 or whatever other readable format that you choose.
It might be that the TRANSFER of a date between 2 systems is in a similar format, but then formatting the date like that is entirely up to you.
As for how to do that, the link you posted seems like a possible way (or alternatively http://docwiki.embarcadero.com/Libraries/Berlin/en/System.SysUtils.IncMonth), I'm afraid I can't give you an example as I'm not familiar with the tool/language involved, I'm just speaking generically about Date manipulations and they should ALWAYS be on the raw object.
the user enters date in mm-dd-yy format. I have to convert this into ('YYYY-MM-DD"T"HH24:MI:SS) how can i do this in vb.net
Thanks
use DateTime Parse or ParseExact methods (or their Try... variation)
then ToString with your format string the resulting value if it is valid, otherwise tell user to enter a better value.
I don't actually speak VBian so I can't provide sample code.
I am in the unfortunate position that I need to use a composite id in a Grails app where I work with legacy data. This means I have to override some actions in the controller, but as I did this I was struck by the fact that I could not use use a date argument directly as a parameter to a dynamic method.
Instead of just doing MyLegacyObj.findBySystemIdAndLogDate(params.systemId, params.logDate), I first needed to parse the date string before giving it to the dynamic method. To further complicate matters I had no idea what format the date string had (until I added lots of log.debug() string to the output). So now I have a bit of code looking like this
def formatter = new SimpleDateFormat("EEE MMM d HH:mm:ss z yyyy")
MyLegacyObj.findBySystemIdAndLogDate(params.systemId, formatter.parse(params.logDate));
This feels unoptimal, no to say dangerous (what if the date format changes with the locale?)? What would be a recommended way of doing this, and do I really need to parse dates at all?
Date is a pretty complex object and params are just Strings, so Date is submitted in parts. It is "magically" assembled from the parts when assigning x.properties = params.
Command object will do the work for you, if you add a Date field to it.
It has nothing to do with methods' dynamic or static invocation. Your GSP that renders Date editor might interfere too.