When are you going to that?
( When ( ( ( are you ) ( going ( to that ) ) ) ? ) )
(ROOT (SBARQ (WHADVP (WRB When)) (SQ (VBP are) (NP (PRP you)) (VP (VBG going) (PP (TO to) (NP (DT that))))) (. ?)))
What time are you heading there?
( ( What time ) ( ( ( are you ) ( heading there ) ) ? ) )
(ROOT (SBARQ (WHNP (WDT What) (NN time)) (SQ (VBP are) (NP (PRP you)) (VP (VBG heading) (ADVP (RB there)))) (. ?)))