So, what is an appropriate greeting to use at night time? I am in the process of creating a software application which displays a greeting to users based on the time of day. The expression by night is typically used to contrast someones nighttime activities to their daytime activities, especially when the nighttime activities are unusual or unexpected. The exception here is that native speakers almost never say ?yesterday night - its invariably last night (and conversely, we dont say ?last morning/afternoon/evening). The family is eating dinner. 11:59 pm friday 12:01 am saturday these are totally unambiguous. · night means after i go to bed. · friday night at midnight probably will always be interpreted as midnight in the night which follows friday evening. 1 oclock in the morning means youve woken me up so knock off that damn racket. Or someone stole my phone in the night. (edit) thanks to talia for pointing out that us speakers actually prefer last evening over yesterday evening. · what can i say about a thing happened at night? · i was puzzled by your question, then i worked out that you mean how do you greet a person who is in a different time zone from yours? i suppose, if you know what time it is where they are, you use the greeting appropriate for them. Someone stole my phone at night. Good night, [users name] just doesnt seem right. · “good night” or “good evening”? From when until when is it considered to be ev. Which one is right to say? 1 oclock at night means ive have fun staying up late so stop complaining about the racket im making. · im a beginner here, and i have a question about the evening/night meal, and this is my first question. Midnight tonight this means (to me) the midnight following today. · the spoken use of night as an informal, familiar version of good night (wishing one a restful sleep) is common, but im not sure what the proper written equivalent is - if there is one. I have come to a blank on what to display to the user when it is late at night.