Looks like nobody knows what the actual dates should be?
♈ Aries (Ram): March 21–April 19
♉ Taurus (Bull/Stier): April 20–May 20
♊ Gemini (Twins/Tweelingen): May 21–June 21
♋ Cancer (Crab/Kreeft): June 22–July 22
♌ Leo (Lion/Leeuw): July 23–August 22
♍ Virgo (Virgin/Maagd): August 23–September 22
♎ Libra (Balance/Weegschaal): September 23–October 23
♏ Scorpius (Scorpion/Schorpioen): October 24–November 21
♐ Sagittarius (Archer/Boogschutter): November 22–December 21
♑ Capricornus (Goat/Steenbok): December 22–January 19
♒ Aquarius (Water Bearer/Waterman): January 20–February 18
♓ Pisces (Fish/Vissen): February 19–March 20