The date I'm trying to index is in a field inside of each row within a log, and looks like this: Time Field ago 31,2015 02:01:18 PM "ago" is for agosto (August in English). In other words "ago" is the litmonth for august in Spanish language. Every time I'm trying to index a litmonth that is different from English language, it doesn't catch them. I tried to configure the datetime.xml like this: <define name="_litmonth2" extract="litmonth"> <text><![CDATA[(?<![\d\w])(ene|feb|mar|abr|may|jun|jul|ago|sep|oct|nov|dic)[a-z,\.;]*]]></text> </define> <define name="_otherdate" extract="litmonth, ignored_sep, day, zone, ignored_sep2, year"> <text><![CDATA[(?<!\w|\d[:\.\-])]]></text> <use name="_litmonth2"/> <text><![CDATA[([/\- ]) {0,2}]]></text> <use name="_day"/> <text><![CDATA[(?!:) {0,2}(?:\d\d:\d\d:\d\d(?:[\.\,]\d+)? {0,2}]]></text> <use name="_zone"/> <text><![CDATA[)?((?:\2|,) {0,2}]]></text> <use name="_year"/> <text><![CDATA[)?(?!/|\w|\.\d)]]></text> </define> <timePatterns> <use name="_time"/> <use name="_hmtime"/> <use name="_hmtime"/> <use name="_dottime"/> <use name="_combdatetime"/> <use name="_utcepoch"/> <use name="_combdatetime2"/> </timePatterns> <datePatterns> <use name="_otherdate"/> </datePatterns> This actually catch the litmonth ago in the indexing time like the month number 8: But when is indexed, then it shows this: As you can see, it not the same date than before. ¿Any clues? ... View more