regex or mask help

[gwp1]

Time is presented in document as "459 PM"

It is read as "four hundred fifty-nine PM".

I need for it to be read as "four fifty-nine PM". This obviously needs to be for any time in either three or four digit format and I have beat my head against the proverbial wall and not been successful.

Guidance appreciated, please.

[Jim Bretti]

One way to do this is with an expression that looks for three digits followed by a space, then am or pm. Then respell the match, inserting a space between the first and second digit.

Give this a try:

Regular Expression:
(\d)(\d\d)(?=\s(A|P)M)

Respell:
$1 $2

There is a very good regular expression reference at https://www.regular-expressions.info/ if you need help with regular expressions