$Date.Format on Silverstripe 4 Template - date

I have a date in the database with this format "YY-mm-dd". On the template I want it in this format: dd.mm.YY
Usually it would work with $date.Format('d.m.Y')
But not in Silverstripe 4. It converts from 2018-05-08 to 8.0.2018. Only the year is correct. Was there a change. I didn't find anything in the Documentation

Date formats in SS4 were changed from PHP date formatting to CLDR date formatting (changelog link):
Changed Format() method to use CLDR format strings, rather than PHP format string. E.g. d/m/Y H:i:s (php format) should be replaced with to dd/MM/y HH:mm:ss (CLDR format).
You can use this to achieve what you want:
$Date.Format('dd.MM.y')

The guide mentioned in the previous answer regarding date formatting has moved. The new location for CLDR date formatting as used by Silverstripe 4 can be found here:
https://unicode-org.github.io/icu/userguide/format_parse/datetime/#date-field-symbol-table

Related

What does T mean in "YYYY-mm-DDTHH:MM"?

I am trying to pull some data from Twitter, and the date format is "YYYY-mm-DDTHH:MM". What does T mean in "YYYY-mm-DDTHH:MM"?
The T isn't substituted for a value, it's a character used in the output to designate that the second part is a Time.
For example: 2021-04-20T13:03
The format is part of the ISO 8601 international standard.

How to set default parameter as 7 days ago to different date format on ssrs

I have default parameter and this parameter shows me 7 days ago with the expression below:
=DateAdd("d",-7,CDate(Format(Today(), "MM/dd/yyyy")))
But my report just running without error while the customer using "MM/dd/yyyy" time format.
Is there a way to use this parameter ALSO with "dd/MM/yyyy" format?
I would like to set a parameter to show 7 days ago but ı would like to use this parameter with both time format.
Thanks
Don't use the Format. Just put =DateAdd("d",-7,Today()). It will automatically take the Format according to System's format.
Firstly, the format part of your expression is redundant and misleading - don't use it
=DateAdd("d",-7,Today())
Secondly, you don't have any choice of how SSRS displays it's datepickers. It shows american format only (M/d/Y)
A date is a value and values do not have a format. A date is displayed and has to be entered in a format that depends on the language settings of your browser. Using a date picker, you even don't have to care about the input format. So, just use an expression that calculates the desired value:
=Today.AddDays(-7)

Date format Wikimedia

I have a wiki in persian. In my preferences (user preferences), I can change date format for persian. And, I can see that the date format is as follow:
This picture shows that the user date format is correct and in persian, which is correct.
But when I have signed out, The date format of site is not persian. It looks like this:
This picture shows that the default date format is not persian, which is not the case I want to be.
I want the default date format of the site be in persian, too.
It would be great if some one guide me how to change the default time zone and date format of the wiki site.
Wiki Site Address: wiki.aicd.ir
I have found the answer as follow:
Add the following code at the end of LocalSettings.php file to change the default date format to 'persian':
$wgDefaultUserOptions['date'] = 'persian';
Wiki Site to Check

Is there a name for the date format "YYYY-MM-DD HH:MM:SS"?

For talking over the phone or to my co-workers, is there a short-hand name for this date format already established?
Names of other standard date formats would also be useful.
That is the ISO standard date and time.
ISO 8601

Bug in Zend_Date (back in time)

I have a very strange problem, Zend_Date is converting my timestamp to a year earlier.
In my action:
// Timestamp
$intTime = 1293922800;
// Zend_Date object
$objZendDate = new Zend_Date($intTime);
// Get date
echo date('Y-m-d',$intTime).'<br>';
echo $objZendDate->get('YYYY-MM-dd');
This outputs:
2011-01-02
2010-01-02
Can anyone tell me what i'm doing wrong?
From the ZF issue tracker it seems this is a known issue:
Recently a lot of ZF users are filing a bug that Zend_Date returns the wrong year, 2009 instead of 2008. This is however expected behaviour, and NOT A BUG!
From the FAQ:
When using own formats in your code you could come to a situation where you get for example 29.12.2009, but you expected to get 29.12.2008.
There is one year difference: 2009 instead of 2008. You should use the lower cased year constant. See this example:
$date->toString('dd.MM.yyyy');
instead of
$date->toString('dd.MM.YYYY');
From the manual
Note that the default ISO format differs from PHP's format which can be irritating if you have not used in previous. Especially the format specifiers for Year and Minute are often not used in the intended way.
For year there are two specifiers available which are often mistaken. The Y specifier for the ISO year and the y specifier for the real year. The difference is small but significant. Y calculates the ISO year, which is often used for calendar formats. See for example the 31. December 2007. The real year is 2007, but it is the first day of the first week in the week 1 of the year 2008. So, if you are using 'dd.MM.yyyy' you will get '31.December.2007' but if you use 'dd.MM.YYYY' you will get '31.December.2008'. As you see this is no bug but a expected behaviour depending on the used specifiers.
For minute the difference is not so big. ISO uses the specifier m for the minute, unlike PHP which uses i. So if you are getting no minute in your format check if you have used the right specifier.
To add to zwip's answer, what happens behind the scenes is that your date format YYYY-MM-dd is actually translated into o\-m\-d, which is then passed to PHP's date() function internally with the timestamp you provided.
Like mentioned in the other answer, and in the documentation for the o format on the date format page, the calculation of the year based on the ISO week can sometimes result in the year being one different to the value that you expect.