Clarification on any particular detail? For a general overview you get lots of information when entering your heading in Google, e.g.: – http://german.about.com/cs/onlinecourses/ht/httelltimeger.htm – http://learn-german-easily.com/tell-time-in-german – http://www.dummies.com/how-to/content/basic-german-telling-time.html – http://www.babelnation.com/german/courses/01_05_1.html