the use of cuándo/cuando in these two statements

Question

1Llámame _cuando_______ tengas un momento libre.Call me when you have a free moment.Dime cuándo vas a viajar a Italia.Tell me when you are travelling to Italy.Can you help me to understand the difference between the use of cuándo/cuando in these two statements?  Thank you!

Answer

Hola Papicuándo with an accent can be translated as "at what moment in time" while cuando without an accent cannot. 1. Llámame cuando tengas un momento libre. (Call me at what moment in time you have some time ??????)2. Dime cuándo vas a viajar a Italia. (Tell me at what moment in time you are travelling to Italy) OKSaludosInma

Answer

Yeah, my peanut brain still sees no difference. #1 sounds awkward with "at what moment in time" substituting cuando, but still works for me. Kind of like, ... when you are available to have some time...

Would it help to think of cuándo as "at what moment in time", hmm, as almost a question instead of a statement? - "at what moment in time?".

Answer

There's another lesson that explains this. If "cuando" is followed by the subjunctive then it means "whenever". So, "Llamame cuando tengas un momento libre" means "Call me whenever you have a free moment".

Also, I don't think cuándo can be followed by the subjunctive.