Translating Spanish to English

I tried using the online traslater but got no answer so I'm hoping on of the group can tell me what this means.

The record reads that birth registration was 5 Aug 1886 and birth date was "antier" at 8pm.. does that mean yesterday? So the birthdate would be 4 Aug 1886?

Another record in the same birth registration read the child was born "antenoche" is that the same as antier?

Also, when there is a set of twins and they are both named the same, would that usually mean one did not survive or was not expected to survive? I noticed it was not unusual to name another child the same when the earlier born one is deceased.

I have another set of siblings named the same but know they have different wives and were padrinos to each other during the same time period so it's not the same man married twice.. Any ideas why they would do that?

Linda in Everett