Standards for Date/Time addition?

Question

I\'m looking for standards for Date/Time addition. I haven\'t been able to find any. In particular I\'m hoping to find a spec that defines what should happen when you add a mont

Answer 1

Try the mysql date function :

SELECT ADDDATE('2011-01-31', INTERVAL 1 MONTH) // 2011-02-28

Input date with leap year

SELECT ADDDATE('2012-01-31', INTERVAL 1 MONTH) // 2012-02-29