平成21年 (Heisei 21) is 2009 in the Western calendar. Check the age and zodiac below.
Yes. Heisei 21 (平成21年 in Japanese) corresponds to 2009 in the Western calendar.
2009 is the Year of the Ox (丑（うし） in Japanese) in the 12-year zodiac cycle. In the older 60-year sexagenary cycle (kanshi) it is 己丑.
It depends on whether they have had their birthday yet this year. The box near the top of this page calculates both possible ages automatically from today's date — the lower number is their age before their birthday, the higher number is their age after.
Heisei 21 is written 平成21年 in Japanese. It is also commonly abbreviated H21 — for example on driver's licenses and other government forms.
