On many of the APIs, having a timestamp instead of the generic "T00:00:00.000Z" would be incredibly helpful.
At the moment, I am attempting to measure the amount of time an itemReceipt stays in a specific location (also leveraging the perpetualInventory to tell me the various locations of a particular itemReceipt) and deriving the start time from the moment my script picks up a new itemReceipt which is undesirable. Ideally, each of the records respective receivedDate already includes this.
The same applies across many of the datetime values throughout the APIs. The only one that seems to include a time is modifyDate.
As an observation, the Response Sample portion of the API documentation shows the timestamp, while the actual Response Body does not.