Cannot Properly Transform Unix Timestamp to DateTime in Mule 4 - mule

Question

So I am trying to convert a Unix Timestamp into a Human Readable date format (ex: January 20, 2021).
This is the response that I get from an API which gives the Unix timestamp
"time":1388620296020
And then I try to transform it using the Transform Message, my code looks like this
date: (object.properties.time as DateTime) as String {
format: "MMMM dd, yyyy"
},
But the output I get after I deploy it, goes like this
"date": "August 17, +45973"
I am not sure why is it happening.

Answer 1

Epoch can be directly converted to DateTime in Dataweave
Try This
date: (object.properties.time as DateTime {unit : "milliseconds"})
output:
"date": "2014-01-01T23:51:36.02Z"
You can check the output by entering in the below link as well
https://www.unixtimestamp.com/
https://www.epochconverter.com/

Answer 2

Another way to get the exact format,that you mentioned in the quesion (ex: January 20, 2021) it is achievable by below script
%dw 2.0
output application/json
---
date: payload.message as DateTime {unit : "milliseconds"}
as String {format: 'MMMM dd,yyyy'}
this script will give you output as:
{
"date": "January 01,2014"
}

Answer 3

Convert Unix Timestamp to Date Time in Mule 4
Input :
{
"time":1388620296020
}
---------output----------
{
"date": "01-Jan-2014 11:51:36"
}
How to write the script, You understand correct format Date Time.
%dw 2.0
output application/json
{
date: payload.time as DateTime {unit: "milliseconds"} as String {format: 'dd-MMM-yyyy hh:mm:ss'}
}
For more info referred link : https://help.mulesoft.com/s/question/0D52T00004tIkcf/how-to-convert-unix-timestamp-to-normal-human-readable-timestamp-using-dw-20
Thanks