Giving mlp characters birthdays (assuming it’s June 2009 at the start of the show)

I’m assuming June 2009 cause the show aired in sept 2010 and they had winter. Plus the show started in the summer

Twilight: December 6th 1989

Rainbow Dash: April 12th 1990

Applejack: December 30th 1988

Pinkie Pie: May 3rd 1989

Rarity: January 29th 1988

Fluttershy: June 26th 1988

Spike: April 25th 1997

Sweetie Belle: July 9th 2000

Applebloom: February 3rd 2000

Scootaloo: October 10th 1999

Big Mac: January 20th 1986

Cherilee: September 5th 1987

Mrs Cake: July 7th 1970

Mr Cake: April 27th 1970

Zecora: November 1st 1979

Cadence: June 26th 1983

Shining Armor: January 12th 1983