This is not absolute.

Logically speaking, it should be included in the current bill, but in fact, if you consume late in the day, it may be included in the next bill.

I once made a purchase on the same day as the bill, probably around 6 or 7 o'clock in the afternoon. Later, when the bill came out, I found that the money was included in the next bill. I think this may be related to some delay factors, or it may be related to the settlement system of individual banks. I have two credit cards, Bank of Communications and China Merchants Bank, but I forgot which card I used.

For your reference only.