# "diff date" and "if"

**URL:** https://discuss.elastic.co/t/diff-date-and-if/264236
**Category:** Kibana
**Tags:** painless
**Created:** [February 14, 2021, 6:40am UTC](https://discuss.elastic.co/t/diff-date-and-if/264236 "2021-02-14T06:40:33Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![Sharissa](https://avatars.discourse-cdn.com/v4/letter/s/ed8c4c/32.png) [@Sharissa](https://discuss.elastic.co/u/Sharissa)
#### Post date: [February 14, 2021, 6:40am UTC](https://discuss.elastic.co/t/diff-date-and-if/264236/1 "2021-02-14T06:40:33Z")

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Hello! I am trying to make a classifier where I need to see the difference of dates and determine if they are on time. I am trying to do this script but it shows error in the index, any recommendations?

def diff = doc['tranDate\_as\_date'].value - doc['businessDate\_as\_date'].value;  
def hrsdiff=diff/1000/60/60;

if (hrsdiff \>23.5){  
return "Delay"  
}else{  
return "On time"  
}

 ![Captura](https://us1.discourse-cdn.com/elastic/original/3X/f/0/f0a42edb3235c3f67d205c7eb3fc8e80e4b0d475.jpeg)

---

<div class="post-metadata">

### Author: ![aaron-nimocks](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/aaron-nimocks/32/73965_2.png) [@aaron-nimocks](https://discuss.elastic.co/u/aaron-nimocks)
#### Post date: [February 14, 2021, 1:22pm UTC](https://discuss.elastic.co/t/diff-date-and-if/264236/2 "2021-02-14T13:22:58Z")

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I did this in the Painless Lab for testing. Just need to change input fields `params.tranDate_as_date` and `params.businessDate_as_date` to Scripted Fields `doc['tranDate_as_date'].value` and `doc['businessDate_as_date'].value`.

**Parameters**

```auto
{
  "tranDate_as_date": "2021-02-27T19:28:48+00:00",
  "businessDate_as_date": "2021-02-28T09:28:48+00:00"
}

```

**Script**

```auto
ZonedDateTime tranDate_as_date = ZonedDateTime.parse(params.tranDate_as_date); 
ZonedDateTime businessDate_as_date = ZonedDateTime.parse(params.businessDate_as_date); 

long diff = ChronoUnit.HOURS.between(tranDate_as_date, businessDate_as_date);

if (diff > 23.5) {
    return "Delay";
} else {
    return "On time";
}

```

[Datetime functions in Painless Documentation](https://www.elastic.co/guide/en/elasticsearch/painless/current/painless-datetime.html)

---

<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 14, 2021, 1:23pm UTC](https://discuss.elastic.co/t/diff-date-and-if/264236/3 "2021-03-14T13:23:14Z")

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