# Error when converting timestamp date

**URL:** https://discuss.elastic.co/t/error-when-converting-timestamp-date/26327
**Category:** Logstash
**Created:** [July 27, 2015, 7:08am UTC](https://discuss.elastic.co/t/error-when-converting-timestamp-date/26327 "2015-07-27T07:08:49Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![EricK](https://avatars.discourse-cdn.com/v4/letter/e/bbce88/32.png) [@EricK](https://discuss.elastic.co/u/EricK)
#### Post date: [July 27, 2015, 7:08am UTC](https://discuss.elastic.co/t/error-when-converting-timestamp-date/26327/1 "2015-07-27T07:08:49Z")

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Trying to add date from field (start\_date) to @timestamp using the following filter:

date  
{  
match =\> ["start\_date", "yyyy-MM-dd HH:mm:ss Z"]  
}  
start\_date is in the format: 2015-07-26 11:54:43 +0100  
I get the following error:  
:exception=\> "cannot convert instance of class org.jruby.RubyTime to class java.lang.String", :config\_parsers=\>"yyyy-MM-dd HH:mm:ss Z"  
What am i doing wrong?

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<div class="post-metadata">

### Author: ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [July 27, 2015, 7:14am UTC](https://discuss.elastic.co/t/error-when-converting-timestamp-date/26327/2 "2015-07-27T07:14:08Z")

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Please keep it to the one thread - [Error when converting Date](https://discuss.elastic.co/t/error-when-converting-date/26306/3)

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<div class="post-metadata">

### Author: ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [July 27, 2015, 7:14am UTC](https://discuss.elastic.co/t/error-when-converting-timestamp-date/26327/3 "2015-07-27T07:14:11Z")

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