It is very common. I don't know if there is a rule.
Student or Learner
I've noticed that many native speakers sometimes seem to omit the preposition before date.
"Brussels, Belgium (CNN)
Paris and Brussels continued to defend against the threat of terrorist attacks Sunday, with raids and arrests in the Belgian capital and a fresh appeal from French police."
Shouldn't we put "on" before Sunday? I've seen this kind of omission several times before. Is there any rule to exclude the preposition before date?Thank you
For me (BrE), "on" is required.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.
I should have been clearer - in the original context, I would use "on". I, too, would happily say "I'll see you Sunday", "I'll do it Sunday".
Thank you all.
May I conclude that it's required for British English to put the preposition before date, but it becomes more flexible for American English?
"The date" is something like December 3 or May 19.
"The day" is Sunday.
Ems and Piscean (both British) said they'd omit it in a sentence like "See you Sunday" so it's clearly not always required.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.
Dropping the preposition is increasing in British English, but it is not so established that the sentence from CNN would work. In BrE, it may be better to play safe and use it in most contexts, though things like See you Sunday are fine.