Customers in Elektron as a Service can conduct testing against a replay of recorded data containing the high precision timestamp. The final schedule is being compiled for enabling the high precision timestamp within these environments by the end of the year following client qualification testing. Please speak to your account team in order to learn more about the schedule for enablement.
This question was first asked in a MiFID IIwebinar (27th of Sep). Please see here: Introduction to MiFID II for Developers