How to set a field value but not display it

[louisdecharson]

Hi,

I want to set a value for a field but ultimately don't display the field value, only transforming the field value in other places.
My use-case is the following: I want to choose a date from the calendar date picker and extract day, month, year in various places, but I am not interested in the raw timestamp value.
See below an example:

# -*- mode: snippet -*-
# name: journal
# key: journal
# --
#+TITLE:${1:$(format-time-string "%A, %d %B %Y" (read yas-text))}
#+KEYWORDS: ${1:`(org-read-date nil t)`},${1:$(format-time-string "%Y" (read yas-text))},${1:$(format-time-string "%B" (read yas-text))}
#+DATE: ${1:$(format-time-string "%Y-%m-%d" (read yas-text))}
# Local Variables:
# org-html-postamble: "<p id='date' class='text-muted'>${1:$(format-time-string "%Y-%m-%d" (read yas-text))}</p>"
# End:

In the example above, the timestamp is kept as the first keyword but if possible I would like to not display it. Is it possible ?