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Your LimeSurvey version: [3.28.9+]
Own server or LimeSurvey hosting: own
Survey theme/template: fruity
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I need to insert a dynamic date to the question text and I can do it using the "date" function. But I need the date to show in Polish.
The example in English is: "During the last week, i.e. since {date("l, d-m-Y",strtotime("now")-604800)}", which today is shown as: "During the last week, i.e. since Wednesday, 27-04-2022". Instead "Wednesday" I need Polish translation (środa). I need to do the same with months: "During last year i.e. since {date("F Y",strtotime("now")-31104000)}".

Even if the language of the survey is Polish the dates are shown in English.
If you think that a sample .lss may help, I'll attach it. Thank you.
Elzbieta

Not an expert, but here they seem to discuss exactly what you need:

stackoverflow.com/questions/18068785/pol...s-in-date-formatting

This is a missing feature. There were threads before about the missing languages in the date/time display.
forums.limesurvey.org/forum/can-i-do-thi...er-selected-language

LimeSurvey would need to expose the PHP function intldateformatter.
www.php.net/manual/en/intldateformatter.format.php

The whole exposing of PHP functions take place in em_core_helpes. Not sure if LS3 would receive new features.
But a look in the code illustrate that exposing functions often are only a few lines of code.
github.com/LimeSurvey/LimeSurvey/blob/97...s/em_core_helper.php

A workaround for one language would be to translate the 12 months and 7 days via Expressionscript. A lot of code

Thank you both for the answers. I don't think I am able do the coding myself, so I will need to live without the names of days and months and stay only with numbers .

A feature request would be fine. Exposing PHP functions is mostly a passing through. The amount of code seems to be low to get this done. No GUI needed. No external libs. Just PHP towards ExpressionScript.