'Same Day' in the Bible

On this selfsame day, entered Noah, and Shem and Ham and Japheth. Noah's sons, - and Noah's wife, and his sons' three wives with them into the ark:

So Abraham took Ishmael his son and all born of his house and all bought with his silver - every male among the men of the house of Abraham, - and circumcised the flesh of their foreskin on this selfsame day, according to that which God had spoken with him.

On this selfsame day, was Abraham circumcised, - and Ishmael his son;

And it came to pass, on the same day, that the servants of Isaac came in, and told him concerning the well which they had digged, and said to him, We have found water!