Viertel zehn
... German for => a quarter past nine (time of the day)
In German "viertel zehn" and "viertel vor zehn" must not be confused. The first version means: a quarter on the way from nine to ten o'clock, which is either 9.15 or 21.15. The latter means: a quarter still before us on the way from nine to ten o'clock, which can either mean 9.45 or 21.45.