I went to sermonaudio.com and made some observations.
Looking at the sermon lengths of representative preachers this is what I found.
Don Green (from Ky)
44-85 minutes. Most of his are in the 60-some minute range.
Alistar Begg
26-64 minutes. Most of his are in the 40's.
Mike Renihan
38-93 minutes. Most of his are in the 60's.
Sinclair Ferguson
29-80. Most are in the 40's.
Al Martin
45-82. Most are in their 60's.
Joel Beeke
29-79. Most are in the 60-some minute range.
DMLJ
47-62. Most are in the 50's.
Now these "sermon lengths" sometimes included prayer time. But the prayers normally were not long.
Looking at the sermon lengths of representative preachers this is what I found.
Don Green (from Ky)
44-85 minutes. Most of his are in the 60-some minute range.
Alistar Begg
26-64 minutes. Most of his are in the 40's.
Mike Renihan
38-93 minutes. Most of his are in the 60's.
Sinclair Ferguson
29-80. Most are in the 40's.
Al Martin
45-82. Most are in their 60's.
Joel Beeke
29-79. Most are in the 60-some minute range.
DMLJ
47-62. Most are in the 50's.
Now these "sermon lengths" sometimes included prayer time. But the prayers normally were not long.