time in strftime format where is the document url?

[bronze1man]

Question

  # Available variables are %path (path name), %Y %m %d %H %M %S %f %s (time in strftime format)

php version do not have %f (https://www.php.net/manual/en/function.strftime.php)
python version do not have %s (https://docs.python.org/3/library/datetime.html#strftime-and-strptime-format-codes)

Maybe an example is better?