# Index name with local system date not using message @timestamp

**URL:** <https://discuss.elastic.co/t/index-name-with-local-system-date-not-using-message-timestamp/160981>\
**Category:** Logstash\
**Created:** [December 14, 2018, 11:31pm UTC](https://discuss.elastic.co/t/index-name-with-local-system-date-not-using-message-timestamp/160981 "2018-12-14T23:31:05Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![noobtoelks](https://avatars.discourse-cdn.com/v4/letter/n/77aa72/32.png) [@noobtoelks](https://discuss.elastic.co/u/noobtoelks)\
**Post date:** [December 22, 2018, 9:01pm UTC](https://discuss.elastic.co/t/index-name-with-local-system-date-not-using-message-timestamp/160981/2 "2018-12-22T21:01:27Z")

</div>

I was looking at this post

[https://discuss.elastic.co/t/need-help-to-create-current-date-based-index-in-ls/42834](https://discuss.elastic.co/t/need-help-to-create-current-date-based-index-in-ls/42834)

but get the follow error

`[2018-12-22T20:32:21,539][ERROR][logstash.filters.ruby] Ruby exception occurred: Direct event field references (i.e. event['field']) have been disabled in favor of using event get and set methods (e.g. event.get('field')). Please consult the Logstash 5.0 breaking changes documentation for more details.`

so looking at this

[https://discuss.elastic.co/t/logstash-cannot-assign-correct-date-to-log-timestamp/89249/3](https://discuss.elastic.co/t/logstash-cannot-assign-correct-date-to-log-timestamp/89249/3)

here is the final working config

```
filter {
  ruby {
    code => 'event.set("[@metadata][now]", Time.now.strftime("%Y.%m.%d"))'
  }
}
output {
  elasticsearch {
    ...
    index => "logstash-%{[@metadata][now]}"
  }
}
```

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_[View the full topic](https://discuss.elastic.co/t/index-name-with-local-system-date-not-using-message-timestamp/160981)._