I am making a whatsapp chat analyser. I have made the pattern which supports 24-hour chat format. I want it to support 12-hour chat format as well

Question

When one will upload 24-hour chat format, my analyser accepts it. 9/5/21, 22:26 -

This is the format and the pattern I have written is

r'\d{1,2}/\d{1,2}/\d{2,4},\s\d{1,2}:\d{2}\s-\s|\d{1,2}/\d{1,2}/\d{2,4},\s\d{1,2}:\d{2}\s[APap][Mm]\s-\s

Provide me the pattern that supports this format: 02/03/2023, 9:56 pm -