# Kibana painless- Difference in dates in days

**URL:** <https://discuss.elastic.co/t/kibana-painless-difference-in-dates-in-days/169201>\
**Category:** Kibana\
**Created:** [February 20, 2019, 12:11pm UTC](https://discuss.elastic.co/t/kibana-painless-difference-in-dates-in-days/169201 "2019-02-20T12:11:10Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![gauravb](https://avatars.discourse-cdn.com/v4/letter/g/34f0e0/32.png) [@gauravb](https://discuss.elastic.co/u/gauravb)\
**Post date:** [February 20, 2019, 12:11pm UTC](https://discuss.elastic.co/t/kibana-painless-difference-in-dates-in-days/169201/1 "2019-02-20T12:11:10Z")

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I have two date fields - Date1 and Date2, both are in date format  
I want to calculate days between the two dates.  
I tried **doc['date2'].value - doc['date1'].value**, this is not giving the expected return value

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**Author:** ![lukas](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/lukas/32/6812_2.png) [@lukas](https://discuss.elastic.co/u/lukas)\
**Post date:** [February 20, 2019, 8:26pm UTC](https://discuss.elastic.co/t/kibana-painless-difference-in-dates-in-days/169201/2 "2019-02-20T20:26:11Z")

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You could do something like the following:

```auto
return (doc['date2'].value.millis - doc['date1'].value.millis) / 1000 / 60 / 60 / 24;

```

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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:** [March 20, 2019, 8:26pm UTC](https://discuss.elastic.co/t/kibana-painless-difference-in-dates-in-days/169201/3 "2019-03-20T20:26:12Z")

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