昭和40年 (Showa 40) is 1965 in the Western calendar. Check the age and zodiac below.
Yes. Showa 40 (昭和40年 in Japanese) corresponds to 1965 in the Western calendar.
1965 is the Year of the Snake (巳（み） in Japanese) in the 12-year zodiac cycle. In the older 60-year sexagenary cycle (kanshi) it is 乙巳.
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 40 is written 昭和40年 in Japanese. It is also commonly abbreviated S40 — for example on driver's licenses and other government forms.
