昭和23年 (Showa 23) is 1948 in the Western calendar. Check the age and zodiac below.
Yes. Showa 23 (昭和23年 in Japanese) corresponds to 1948 in the Western calendar.
1948 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.
Showa 23 is written 昭和23年 in Japanese. It is also commonly abbreviated S23 — for example on driver's licenses and other government forms.
