Counting in German starts with "null" (zero) and runs through "eins" (one), "zwei" (two), "drei" (three), "vier" (four), "fünf" (five), "sechs" (six), "sieben" (seven), "acht" (eight), "neun" (nine), and "zehn" (ten). From eleven to nineteen, the teens follow: "elf," "zwölf," "dreizehn," "vierzehn," "fünfzehn," "sechzehn," "siebzehn," "achtzehn," and "neunzehn." Twenty is "zwanzig."
The tens continue with "dreißig" (thirty), "vierzig" (forty), and "fünfzig" (fifty). Higher round numbers are "hundert" (one hundred) and "tausend" (one thousand). These words appear constantly when telling time, giving prices, or stating your age, as in "Sie wird bald dreizehn" (She'll soon be thirteen) or "Das kostet zwanzig Euro" (That costs twenty euros).
The days of the week are all masculine nouns beginning with "der": "der Montag" (Monday), "der Dienstag" (Tuesday), "der Mittwoch" (Wednesday), "der Donnerstag" (Thursday), "der Freitag" (Friday), "der Samstag" (Saturday), and "der Sonntag" (Sunday). The basic time units are "der Tag" (day), "die Woche" (week), "der Monat" (month), and "das Jahr" (year), with "die Stunde" (hour) and "die Minute" (minute) for shorter periods. "Heute" means "today," "morgen" means "tomorrow," "gestern" means "yesterday," and "jetzt" means "now." Asking the time is "wie spät ist es?," while "der Morgen" (morning) and "der Abend" (evening) describe parts of the day.