# Use persian calendar in date\_histogram

**URL:** <https://discuss.elastic.co/t/use-persian-calendar-in-date-histogram/323678>\
**Category:** Elasticsearch\
**Created:** [January 22, 2023, 2:08pm UTC](https://discuss.elastic.co/t/use-persian-calendar-in-date-histogram/323678 "2023-01-22T14:08:49Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![masoud\_darvishi](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/masoud_darvishi/32/114483_2.png) [@masoud\_darvishi](https://discuss.elastic.co/u/masoud_darvishi)\
**Post date:** [January 22, 2023, 2:08pm UTC](https://discuss.elastic.co/t/use-persian-calendar-in-date-histogram/323678/1 "2023-01-22T14:08:49Z")

</div>

hi  
i'm using date histogram with monthly interval aggregation

```auto
"date_histogram": {
    "field": "events.create",
    "calendar_interval": "month",
    "format": "yyyy-MM-dd"
}

```

and this is the result

```auto
 {
       "key_as_string": "2023-01-01",
       "key": 1672531200000,
       "doc_count": 2
}

```

i want date in key\_as\_string to be base on persian calendar. (base on persian calendar "2023-01-01" must change to "2023-01-21")

is there way to achieve this?

---

<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:** [February 19, 2023, 2:08pm UTC](https://discuss.elastic.co/t/use-persian-calendar-in-date-histogram/323678/2 "2023-02-19T14:08:54Z")

</div>

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.