Hello Linda,
You can use the following expression where your input would be the Month in text and in the output you get the Month Number.
Also, this will work with the full Month Name (December) and also with a short form like Dec, Jan, Feb, etc., as well.

Let us know how it goes.
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Thanks & Regards,
Tejaskumar Darji
Sr. Consultant-Technical Lead
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Original Message:
Sent: 08-02-2022 09:35
From: Linda C
Subject: How to: Convert month name to month number eg: December to 12
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