for 2003 you can say two thousand and three or twenty o three . for 2017 you can say two thousand and seventeen or twenty seventeen .

For 2000-2009 you have to say "two thousand and..." Example: 2003 (two thousand and three), 2008 (two thousand and eight) 2000 (two thousand). For 2010 and above you can say "two thousand and..." or "twenty..." Example: 2010 ("two thousand and ten" or "twenty ten") 2020 ("twenty twenty" or "two thousand and twenty") For dates before 1999, you almost always say the first two numbers together and then the second two numbers together ("nineteen...." or "eighteen...") Example: 1999 ("nineteen ninety nine"), 1865 ("eighteen sixty five") Exceptions: for 1901-1909, 1801-1809, 1701-1709, (and more dates like this going far back) you say "nineteen oh..." Example: 1901 ("nineteen oh one), 1809 (eighteen oh nine), 1704 (seventeen oh four), 1506 (fifteen oh six) Another exception: 1900, 1800, 1700, (and more dates like this going far back) you say "...hundred" Example: 1900 (nineteen hundred), 1400 (fourteen hundred)