I've got a CSV formatted with SAS's date9. output. But dateutil.parser.parse doesn't recognise it and nor does pandas.to_datetime (also a question, does to_datetime use dateutil.parser?). They throw: File "C:\redacted\dateutil\parser.py", line 559, in parse raise ValueError("Unknown string format") ValueError: Unknown string format The format looks like this: 0 12FEB1993 1 12FEB1993 ... 16 16NOV1972 17 01SEP2001 18 06JUL2000 19 01FEB2014 With everything that matters in the second column. Is there any library that can solve this or do I have to roll my own? And if it is the latter, how? Continue reading...