{ // specify a time zone if the timestamps in your log are not in GMT // timezone: "GMT-0800" formats: [ { id: "format1", format: ".*$=json{parse=dottedJson}$" rewrites: [ {input: "TimestampConnectionEnd", output: "timestamp", match: ".*", replace: "$0"} // moved upstread wher it is more efficient {input: "message", output: "message", match: "(.*\")(\\{\"\\w+\".*)", replace: "$2"} ] } ] }