In Redating the New Testament, AT Robinson lists the following dates for the books of the New Testament:

James c. 47-8
1 Thessalonians early 50
2 Thessalonians 50-1
1 Corinthians spring 55
1 Timothy autumn 55
2 Corinthians early 56
Galatians later 56
Romans early 57
Titus late spring 57
Philippians spring 58
Philemon summer 58
Colossians summer 58
Ephesians late summer 58
2 Timothy autumn 58
The Didache c. 40-60
Mark c. 45-60
Matthew c. 40-60+
Luke -57-60+
Jude 61-2
2 Peter 61-2
Acts -57-62+
1, 2, 3 John c. 60-65
1 Peter spring 65
John c. -40-65+
Hebrews c. 67
Revelation late 68 (-70)
1 Clement early 70
Barnabas c. 75
The Shepherd of
Hermas -c. 85