The album was released Tuesday and has been well-received by […]

Shouldn't it be "released on Tuesday"? Where did the "on" go?

I think dropping the preposition is confusing, but I see it written and said so frequently (with clearly the same intended meaning) that I'm doubtful whether I should be correcting it.

Is this pattern valid English? Is it region-specific? Does it have a name?

marked as duplicate by Edwin Ashworth, RegDwigнt Oct 1 '14 at 15:53

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