平成20年 (Heisei 20) is 2008 in the Western calendar. Check the age and zodiac below.
Yes. Heisei 20 (平成20年 in Japanese) corresponds to 2008 in the Western calendar.
2008 is the Year of the Rat (子（ね） in Japanese) in the 12-year zodiac cycle. In the older 60-year sexagenary cycle (kanshi) it is 戊子.
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 20 is written 平成20年 in Japanese. It is also commonly abbreviated H20 — for example on driver's licenses and other government forms.
