At the time Kapiolani Clinic for Women and Children was just that, a clinic. Its services were daily, its hours were normal business hours but they probably had a night time staff to receive, advise or shuttle patients off to Queens Hospital just a few blocks away. But it wasnt a hospital in the 60s. Kapiolani Hospital wasnt built until the early to mid 70s. Its possible to deliver a child at a clinic just as its possible to deliver a child in the back of a taxi but both the clinician and the taxi driver would make an effort to get the mother to be to a maternity ward at a hospital.
It seems that whoever faked Obama's LFBC (that he made public April 27 2011) knew that the Nordyke twins' LFBC's said "Kapiolani Maternity & Gynecological Hospital" so they used that exact phrase.
Nordyke twins
The birth certificate number 61 10641 that the W.H. first used in the summer of 2008 for Obama's faked short form BC had previously been assigned (most likely) to the baby girl Virginia Sunahara, who was born August 4, 1961, and died one day later at Kapiolani.