# Change ECS event.duration unit to milliseconds in Packetbeat

**URL:** <https://discuss.elastic.co/t/change-ecs-event-duration-unit-to-milliseconds-in-packetbeat/223589>\
**Category:** Beats\
**Tags:** ecs-elastic-common-schema, packetbeat\
**Created:** [March 13, 2020, 10:50pm UTC](https://discuss.elastic.co/t/change-ecs-event-duration-unit-to-milliseconds-in-packetbeat/223589 "2020-03-13T22:50:31Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![pryesh001](https://avatars.discourse-cdn.com/v4/letter/p/a183cd/32.png) [@pryesh001](https://discuss.elastic.co/u/pryesh001)\
**Post date:** [March 13, 2020, 10:50pm UTC](https://discuss.elastic.co/t/change-ecs-event-duration-unit-to-milliseconds-in-packetbeat/223589/1 "2020-03-13T22:50:31Z")

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Hi,

I have a requirement to capture http average event duration in milliseconds and show it in a visualisation.

As of now ECS event.duration captures duration in nanoseconds. Which is not very readable in a visualisation.  
Is there any processor to modify it to milliseconds ?  
For ex,  
If event.duration = 800,000,000 ns  
I would like to convert it to 800,000,000 / 100,000 = 800 ms.

Thanks,  
Priyesh Mishra

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**Author:** ![webmat](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/webmat/32/46191_2.png) [@webmat](https://discuss.elastic.co/u/webmat)\
**Post date:** [March 16, 2020, 6:41pm UTC](https://discuss.elastic.co/t/change-ecs-event-duration-unit-to-milliseconds-in-packetbeat/223589/2 "2020-03-16T18:41:15Z")

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The first thing I would recommend looking into, is adjusting your index pattern's format for the `event.duration` field. Look at the "Duration" formatter here:

[https://www.elastic.co/guide/en/kibana/current/field-formatters-numeric.html](https://www.elastic.co/guide/en/kibana/current/field-formatters-numeric.html)

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**Author:** ![pryesh001](https://avatars.discourse-cdn.com/v4/letter/p/a183cd/32.png) [@pryesh001](https://discuss.elastic.co/u/pryesh001)\
**Post date:** [March 16, 2020, 7:09pm UTC](https://discuss.elastic.co/t/change-ecs-event-duration-unit-to-milliseconds-in-packetbeat/223589/3 "2020-03-16T19:09:39Z")

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Thanks @webmat,  
That's exactly what I was looking for.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [April 13, 2020, 7:09pm UTC](https://discuss.elastic.co/t/change-ecs-event-duration-unit-to-milliseconds-in-packetbeat/223589/4 "2020-04-13T19:09:42Z")

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