Minutes can make a difference, a big difference, in astrology, as both the moon and the ascendant degrees change rapidly.

Fraternal twins do not squeeze out of the birth canal side by side, and can be separated by even more than one hour. A study done in 1984 included one case in which the birth time was 134 minutes, with the average (including the one very long duration and one very sort duration) being 15 minutes.

Fifteen minutes will make a significant difference in the rising sign, which is the visible person, and the moon too. Both can change signs and aspects to other planets, as well as other determining factors such as decanates and fixed stars as well as individual degrees.

Does that clear things up a bit for you?