You can say: "Son diez para las siete" or " Son las siete menos diez" which is another way to say it.
Spanish* Diez.
"Setenta" (say-ten-taw)
diez mesas
diez centavos
Seven past ten
Setecientos
ten more days = diez dias mas
To say the party is at ten it is (partido a las diez) or (La fiesta es a las diez).:)
Hola
I have = tengo Tenga Tengan Ten Tened ... ...
'Son las diez"
"diez a la noche"