Okay, the user wants me to translate "pay-day" into Thai. Let me check the rules again. The first rule says to translate all content into Thai. The second rule states that if the content is already in Thai, leave it as is. The third rule is to provide only the translation without any explanations.
So, "pay-day" is in English. I need to translate it. The direct translation for "pay-day" in Thai is "วันจ่ายเงินเดือน" which literally means "day of paying salary." But I should make sure that's the correct term. Sometimes, there might be a more common phrase. Let me confirm. Yes, "วันจ่ายเงินเดือน" is the standard translation. Alternatively, "วันได้รับเงินเดือน" could also be used, but the first one is more direct. Since the user asked for a translation, I'll go with "วันจ่ายเงินเดือน." No need for explanations, just the translation. Alright, that's it.