Hey Joffm,
the date is inserted as a token attribute using the limesurvey api, the resulting value looks like:

2022-25-03 18:47

I do not have any quotes around the attribute. here is a screen capture of my question source:

How stressed have you been by the pandemic, in the <strong>past 2 months</strong>, since {date("F j, Y",strtotime(TOKEN:ATTRIBUTE_4))}?

displays like:

How stressed have you been by the pandemic, in the past 2 months, since?

The value will display if i use {TOKEN:ATTRIBUTE_4}, just not with the date function formatting.

Limesurvey Version : Version 3.18.0+190923

I also tested on the free hosted limesurvey account at ciphr.limesurvey.net running  Version 5.3.17 , and it also does not display. I must be missing something in the syntax
 

Well, the quotes were just an example. There may be other things.
Start at the beginning:
Display 
#{TOKEN: ATTRIBUTE_4}#

{strtotime(TOKEN: ATTRIBUTE_4)}

As you need only the date{strtotime(substr(TOKEN: ATTRIBUTE_4,0,10))}

What happens if you enter this date in a question of type "short text" Q1 and enter Q1 in your date-function?

Meaning, first make sure that all parts of the function are fine.

I hope it was a typo.
2022-25-03 is not a valid date.

Joffm


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Wow. I feel really stupid!
I had the month and date reversed in my date format! after correcting the date format, its working now.
thank you!