# Logstash date filter for @timestamp and conversion

**URL:** <https://discuss.elastic.co/t/logstash-date-filter-for-timestamp-and-conversion/195368>\
**Category:** Logstash\
**Created:** [August 15, 2019, 3:59pm UTC](https://discuss.elastic.co/t/logstash-date-filter-for-timestamp-and-conversion/195368 "2019-08-15T15:59:26Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)\
**Post date:** [August 15, 2019, 4:27pm UTC](https://discuss.elastic.co/t/logstash-date-filter-for-timestamp-and-conversion/195368/2 "2019-08-15T16:27:16Z")

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What does the [Time] field look like if you use this?

```
output { stdout { codec => rubydebug { } } }

```

In elasticsearch timestamps are stored as the number of milliseconds since the epoch. You can change the display format in Kibana. If you want to store a different string format you can use [ruby](https://discuss.elastic.co/t/converting-a-date-input-as-a-string-into-a-new-format/177498).

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