While getting data from DB using in WebAPI, getting Z appended in the datetime field.

Hi,

While getting data from DB using in WebAPI, getting Z appended only in the datetime field as below.

WebAPI:

a!localVariables(
local!Details: rule!XXX_DetailsView(
batchSize: http!request.queryParameters.batchSize,
startIndex: http!request.queryParameters.startIndex
),
a!httpResponse(
statusCode: 200,
headers: {
a!httpHeader(name: "Content-Type", value: "application/json")
},
body: a!toJson(value: local!Details)
)
)

It's a simple GET API.

NOTE: rule!XXX_DetailsView - This is queryEntity used to get data from View.

Anyone can advise, what could be the reason, and how can we remove this extra 'Z'.