Please answer my previous question, reading via the API. It's an essential question, what you're seeing here is a display value.
Can't repro this. The displayed time is in my local location (I even switched to IST to test), the stored time as expected is in UTC.
How are you testing this? Direct cURL/Postman or passing through some language that may be changing the value?
As simple as (with the Push endpoint):
"id" : 6142120,
"mktoAcquisitionDate" : "2019-11-07T07:51:43Z"