# Date extraction from a log file
**URL:** https://discuss.elastic.co/t/date-extraction-from-a-log-file/136883
**Category:** Logstash
**Created:** [June 21, 2018, 1:40pm UTC](https://discuss.elastic.co/t/date-extraction-from-a-log-file/136883 "2018-06-21T13:40:23Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@mariyana](https://discuss.elastic.co/u/mariyana)
#### Post date: [June 21, 2018, 1:40pm UTC](https://discuss.elastic.co/t/date-extraction-from-a-log-file/136883/1 "2018-06-21T13:40:23Z")
hi,
I want to extract date from a log file to another field in elastic search that is coming through logstash. My log file is like this
21 May 2018 12:13:32,025 INFO [org.jboss.as.configadmin] (ServerService Thread Pool -- 26) JBAS016200: Activating ConfigAdmin Subsystem
What I want is get the date field extracted using logstash and save it to elastic search. Any help would be appreciable.
---
### Author:  [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [June 21, 2018, 1:43pm UTC](https://discuss.elastic.co/t/date-extraction-from-a-log-file/136883/2 "2018-06-21T13:43:05Z")
Use a grok filter to extract fields (like the timestamp) and use a date filter to parse the timestamp into a standard format.
This is a standard setup for which there are countless examples, though probably not the exact log format you have.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 19, 2018, 1:43pm UTC](https://discuss.elastic.co/t/date-extraction-from-a-log-file/136883/3 "2018-07-19T13:43:07Z")
This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.