From late 1979, when I left school, up to about mid 1981 I went to about 2 gigs a week, sometimes 3, mainly punk and what later became known as 'post punk' gigs. Some of the gigs with established, bigger bands (e.g. the Damned, Ramones, Buzzcocks, Siouxsie) would last an hour or more but most bands were starting out and many hadn't released their first album yet, so a typical set would only last 45-50 minutes perhaps, and they would run out of songs.