Millisecond Forums

Hello. We want to supervise by video if a participant has really observed the presented stimulus. Therefore, we need the time, when the stimulus was presented.With "stimulusonset" it´s only possible to record the milliseconds after the trail began - thus, a kind of hold-up effect control. But we need the time - in terms of time of day (10:12:13) or the milliseconds, counted scine the beginning of the whole experiment.Who can help?