How to separate the dates?

Hi LilyBiri,
Thank you for your reply.

text field date "13 September 2022" in page 1.
I have made some changes for the date field (id: Insert Date). It will be as Enter Date "Filled in".

In this Insert Date, I key in below script  in (Format > Custom Format Script 😞

var date = value.getDate();
this.getField("Insert Date-dd").value = date;

var month = months[value.getMonth()];
var year = value.getFullYear();

this.getField("Insert Date-mmyy").value = month + " " + year;

I need to seperate the DD and the MMMMYYYY in another page.
ie: 13 day of September 2022, display in page 4

Below is the script (For Date - 13, id: Insert Date-dd) in (Format > Custom Format Script ):: 

var insert = this.getField("Insert Date").value;
var value = util.scand("d mmmm yyyy", insert);

this.getField("Insert Date-dd").value = value.getDate();

Below is the script (For MMMMYYYY - September 2022, id: Insert Date-mmyy) in (Format > Custom Format Script 😞 

var insert = this.getField("Insert Date").value;
var value = util.scand("d mmmm yyyy", insert);

const months = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];

this.getField("Insert Date-mmyy").value = months[value.getMonth()] + " " + value.getFullYear();

These are the script that i tried, but its not showing the same Date, as keyed in.
Month and Year is OK,

but if lets say, we were to change the date:
Date, Month and Year, all will not change accordingly.

Please advice, if there is any error in the script.
TQ