# Date conversion adds one microsecond

**URL:** <https://discuss.elastic.co/t/date-conversion-adds-one-microsecond/307418>\
**Category:** Logstash\
**Created:** [June 16, 2022, 1:49pm UTC](https://discuss.elastic.co/t/date-conversion-adds-one-microsecond/307418 "2022-06-16T13:49:24Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![sudden](https://avatars.discourse-cdn.com/v4/letter/s/9f8e36/32.png) [@sudden](https://discuss.elastic.co/u/sudden)\
**Post date:** [June 16, 2022, 1:49pm UTC](https://discuss.elastic.co/t/date-conversion-adds-one-microsecond/307418/1 "2022-06-16T13:49:24Z")

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I'm converting date from string but for some strange reason it sometimes add one microsecond in the timestamp field:

logstash 8.1.3

String field: 2022-06-16T13:44:04.615

Logstash code:  
date {  
match =\> ["fluent\_time", "yyyy-MM-dd'T'HH:mm:ss.SSSZ"]  
target =\> "@timestamp"  
}

Result: 2022-06-16 15:44:04.616

Has anyone seen anything like this?

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 14, 2022, 1:49pm UTC](https://discuss.elastic.co/t/date-conversion-adds-one-microsecond/307418/2 "2022-07-14T13:49:40Z")

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