¿Cuándo es Valentine’s Day (el día de San Valentín)?

Question

Can someone tell me how to respond to it please.

Answer 1

The question means ""When is Valentine's day??

When...means "cuando"

Valentine's Day ...means "dia de San Valentin"

So the answer is: " El dia de San Valentin es el catorce de febrero."

Which means .. Valentine's Day is February 14th.

fourteen means "catorce"

Answer 2

"Cuándo" means "when" in English. The question is asking "when is Valentine's Day." You would respond by stating it is "February 14" or "catorce de febrero." In Spanish, the day precedes the month.