Is it really true that the Zodiac Signs have changed for good and if so what are the new sign dates?

Aries- apr. 19- may 13

Taurus- may 14 - June- 19

Gemini- June 20 - July- 20

Cancer- July 21 - aug. 9

Leo- aug 10- sept. 15

Virgo - sept 16 - oct 30

Libra -oct 31 - nov 29

Ophichus - nov 30- dec 17

Sagittarius- dec 18- Jan 18

Capricorn- Jan 19- feb 15

Aquarius- feb 16- mar 11

Pisces - mar 12 - apr 18