# Exact HOUR from date type field **URL:** \ **Category:** Logstash\ **Created:** [June 5, 2015, 10:18pm UTC](https://discuss.elastic.co/t/exact-hour-from-date-type-field/2047 "2015-06-05T22:18:05Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![kyunam](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kyunam/32/3576_2.png) [@kyunam](https://discuss.elastic.co/u/kyunam)\ **Post date:** [June 5, 2015, 10:18pm UTC](https://discuss.elastic.co/t/exact-hour-from-date-type-field/2047/1 "2015-06-05T22:18:05Z")
I have a date field like this - "orig\_dt" =\> "2008-09-20 17:51:00", How do I extract HOUR (=17) from it? Thanks! ---
**Author:** ![magnusbaeck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusbaeck/32/44943_2.png) [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)\ **Post date:** [June 6, 2015, 10:05am UTC](https://discuss.elastic.co/t/exact-hour-from-date-type-field/2047/2 "2015-06-06T10:05:29Z")
The [grok filter](https://www.elastic.co/guide/en/logstash/current/plugins-filters-grok.html) would be a good choice. ---
**Author:** ![kyunam](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kyunam/32/3576_2.png) [@kyunam](https://discuss.elastic.co/u/kyunam)\ **Post date:** [June 8, 2015, 7:34pm UTC](https://discuss.elastic.co/t/exact-hour-from-date-type-field/2047/3 "2015-06-08T19:34:20Z")
yeah, I tried grok filter before posting and I was hoping that someone would show how to configure a grok filter to parse HOUR. Thanks! ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 5:38am UTC](https://discuss.elastic.co/t/exact-hour-from-date-type-field/2047/4 "2017-07-06T05:38:09Z")