every horse is classed as 1 year older on 1st of January - This depends on the hemisphere you are in - Southern Hemisphere is 1 Aug - coincides with the racing season.
A year after it was born.
You turn 37 on your birthday in July 2013.
You turn 45 on July 1 2013.
The horns can't be removed, a horse born a unicorn will always be a unicorn. Also, horses can't become unicorns, they have to be born one. -->actually, horns can be removed. but only in certain events. A unicorn will turn into a horse when you remove its horn.
Would turn 41 on birthday in July 2013 .
They will turn 49 in 2014.
People born in 1956 will turn 59 in 2015.
Before your birthday in July 2010, you're 67. On your birthday in July 2010, you turn 68.
You will turn 17 in 2013.
You will turn 27 in 2014.
You would turn 32 in 2013.
He was born July 14, 1986. On July 14, 2017 he will turn 31 years old.