平成17年 (Heisei 17) is 2005 in the Western calendar. Check the age and zodiac below.
Yes. Heisei 17 (平成17年 in Japanese) corresponds to 2005 in the Western calendar.
2005 is the Year of the Rooster (酉（とり） in Japanese) in the 12-year zodiac cycle. In the older 60-year sexagenary cycle (kanshi) it is 乙酉.
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 17 is written 平成17年 in Japanese. It is also commonly abbreviated H17 — for example on driver's licenses and other government forms.
