12/8/11- Answer

The answer is 23 hr and 30 min! The cast and crew of Dundee University Musical Sociey in association with Apex Productions, produced and performed Seven Brides for Seven Brothers at the Gardyne Theatre, Dundee, UK at 7.30pm on 27 September 2003, in a time of 23 hr 30 min from first receiving the script. The musical was performed in front of an audience of 203, who had paid £10 a ticket to see the 1 hr 49 min production.