When is the best time to send an invitation?

Send invitations about a month or half before the wedding.

If the wedding invitation chosen by the couple is a paper version, it will be more formal to deliver the invitation to the guests in person. The time to send invitations should be about one month or half a month before the wedding, because if the invitations are sent too early, the guests may forget the time, and if they are sent too late, they may not be able to attend the wedding.