There are set times for using certain greetings, which are pretty much the same as the English.
The only difference is with Bon dia which as well as good morning means good day in Catalan. It is common (for example when walking into a shop) to say Hola, bon dia even if it is late in the afternoon.
|Good morning||Bon dia|
|Good afternoon||Bona tarda|
|Good evening||Bon vespre|
|Good night||Bona nit|
|See you tomorrow (until tomorrow)||Fins demà|