# Calculating duration between two documents in Elasticsearch

**URL:** <https://discuss.elastic.co/t/calculating-duration-between-two-documents-in-elasticsearch/92858>\
**Category:** Elasticsearch\
**Created:** [July 12, 2017, 6:19pm UTC](https://discuss.elastic.co/t/calculating-duration-between-two-documents-in-elasticsearch/92858 "2017-07-12T18:19:33Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Mark\_Harwood](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mark_harwood/32/10538_2.png) [@Mark\_Harwood](https://discuss.elastic.co/u/Mark_Harwood)\
**Post date:** [July 12, 2017, 8:53pm UTC](https://discuss.elastic.co/t/calculating-duration-between-two-documents-in-elasticsearch/92858/2 "2017-07-12T20:53:15Z")

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Use an entity centric index - see [https://youtu.be/yBf7oeJKH2Y](https://youtu.be/yBf7oeJKH2Y)

The comments include a link to example data and scripts

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