# Grock for \[10/26/23 10:48:30:823 CEST\] date format for Logstash filter
**URL:** https://discuss.elastic.co/t/grock-for-10-26-23-1030-823-cest-date-format-for-logstash-filter/346871
**Category:** Elasticsearch
**Created:** [November 10, 2023, 1:38pm UTC](https://discuss.elastic.co/t/grock-for-10-26-23-1030-823-cest-date-format-for-logstash-filter/346871 "2023-11-10T13:38:30Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@elk1985](https://discuss.elastic.co/u/elk1985)
#### Post date: [November 10, 2023, 1:38pm UTC](https://discuss.elastic.co/t/grock-for-10-26-23-1030-823-cest-date-format-for-logstash-filter/346871/1 "2023-11-10T13:38:30Z")
Hello.
I'm looking for grock filter matching this format [10/26/23 10:48:30:823 CEST]
can't find any match from predefined formats. I need it to my Logstash filter. Any ideas ?
---
### Author:  [@Wave](https://discuss.elastic.co/u/Wave)
#### Post date: [November 15, 2023, 2:38pm UTC](https://discuss.elastic.co/t/grock-for-10-26-23-1030-823-cest-date-format-for-logstash-filter/346871/2 "2023-11-15T14:38:02Z")
Hi @elk1985
You don't say what fields you want out of it, this might get you where you want to go:
```auto
\[%{DATE_US:date} %{TIME:time} %{WORD:timezone}\]
```
A few general pointers when using grok with elastic:
1. Elastic Grok [documentation](https://www.elastic.co/guide/en/logstash/current/plugins-filters-grok.html)
2. [Logstash grok patterns](https://github.com/hpcugent/logstash-patterns/blob/master/files/grok-patterns) (always gives me good ideas and helps me not reinvent the wheel).
3. Grok debugger in kibana will help you experiment and see what works.
Good luck
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [December 13, 2023, 2:38pm UTC](https://discuss.elastic.co/t/grock-for-10-26-23-1030-823-cest-date-format-for-logstash-filter/346871/3 "2023-12-13T14:38:56Z")
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