Breakdown of Son las seis menos diez.
ser
to be
seis
six
diez
ten
menos
less; to (telling the time: a quarter to two)
Questions & Answers about Son las seis menos diez.
Why does this use Son instead of Es to mean 'It is'?
Why do we use the feminine plural word las before the number six?
How does menos work here to mean 'to'?
The word menos literally means 'less' or 'minus'. In Spanish, once you pass the half-hour mark, you usually state the next hour and subtract the minutes. So, seis menos diez literally translates to 'six minus ten'.