How to synchronize data-collection by the PI-Adapter for OPC UA on the clock-tick ?

Here is a more precise requirement.

 

I have a PI Adapter for OPCUA collecting data from an OPCUA Server and sending it to a PIServer. However, without any changes, it will use either the Timestamp from the Source, from the Adapter or from the Server.

 

What I would need is the following:

 

I want to use the timestamp of the Adapter. But I want my timestamp to always be:

h:00, h:15, h:30, h:45. I am collecting data every 15mns but it starts the moment I am starting my PI Adapter.

 

Is there a way to make it start at 00:00 ?