昭和50年 (Showa 50) is 1975 in the Western calendar. Check the age and zodiac below.
Yes. Showa 50 (昭和50年 in Japanese) corresponds to 1975 in the Western calendar.
1975 is the Year of the Rabbit (卯（う） in Japanese) in the 12-year zodiac cycle. In the older 60-year sexagenary cycle (kanshi) it is 乙卯.
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.
Showa 50 is written 昭和50年 in Japanese. It is also commonly abbreviated S50 — for example on driver's licenses and other government forms.
