https://community.cloudera.com/t5/Support-Questions/How-to-convert-unix-timestamp-to-datetime-in-Apache-NiFi/m-p/224739#M186603 <P>did you just left out the timestamp from the log entry, or is a log line exactly as you provided? In your example you only have 1 number preceding the IP address, but you try to read two numbers (timestamp and duration)?</P> Fri, 20 Apr 2018 22:25:01 GMT arald 2018-04-20T22:25:01Z