Thursday.
A week is larger than a day because a day has 24 hours but a week has 168.
24/7 means that it is happening all the time. There are 24 hours in a day and 7 days in a week, therefore it means that there isn't an hour out of the day, or a day out of the week that it isn't happening.
Sept 24 1955 was a Saturday.
August 24, 2012 will be a Friday.
March 24, 1967 fell on a Friday.
January 24, 1967 fell on a Tuesday.
It was a Sunday.
Wednesday
It is a Sunday.
October 24 1999 was on a Sunday.
October 24 1994 was a Monday.
October 24 2009 is a Saturday.
October 24, 1996 was a Thursday.
24 October 2005 was a Monday.
24 October 1993 was a Sunday.
24 October 1974 was a Thursday.