num startTime

Source 

@DomName('TextTrackCue.startTime')
@DocsEditable()
num get startTime => _blink.BlinkTextTrackCue.instance.startTime_Getter_(this);
void startTime=(num value)

Source 

@DomName('TextTrackCue.startTime')
@DocsEditable()
set startTime(num value) => _blink.BlinkTextTrackCue.instance.startTime_Setter_(this, value);