These are sent out to guests attending the wedding ceremony and day reception [wedding breakfast].Everybody has different ideas of when to send out Day invitations. Ideally, you need to be looking at sending them out at least 3-4 months before the wedding date, so you need to get in touch with the printers at least 6 months in advance of the wedding date in order to have ample time for viewing proofs and making alterations. Order 1 for every person/family you are inviting with a few spares.