How to Say "Your Date of Birth" in Japanese

生年月日

seinengappi

In Japanese, the phrase for "your date of birth" is 生年月日 (seinengappi).

生年月日 is the standard term used on official documents, forms and in medical or legal contexts.

How does it change in a sentence?

When used in a sentence, 生年月日 is typically followed by a particle like は (topic marker) or を (object marker).

seinengappi

In Japan, when filling out forms for your 生年月日, you will often see the era name, such as 'Reiwa', required instead of the Gregorian calendar year.
In some very traditional contexts, a person's 生年月日 is compared to the lunar calendar, which can lead to a different birthday than the one on their legal ID.
The character 生 in 生年月日 is a 'polyphone' with over a dozen different pronunciations depending on the context, though here it is read as sei.

生年月日はいつ？
What is your date of birth?
This sentence is useful for asking what someone's 生年月日 is.
Tatoeba #1446302 by bunbuku, translation #703328 by papabear
ここに生年月日を書いてください。
Write down your date of birth here.
This sentence is useful for requesting that someone write their 生年月日 in a specific location.
Tatoeba #4562200 by Kiraness, translation #61733 by CK
生年月日を教えていただけますか？
seinengetsuhi o oshiete itadakemasu ka?
Could you please tell me your date of birth?
2 more sentences on Tatoeba

At a hospital reception desk.

陽葵 Himari

受付の確認ですが、生年月日はいつですか？
uketsuke no kakunin desu ga, seinengetsuhi wa itsu desu ka?
For registration confirmation, what is your date of birth?
蓮 Ren

1995年5月10日です。
sen kyūhyaku kyūjū go nen go gatsu tōka desu.
It is May 10th, 1995.
陽葵 Himari

承知いたしました。こちらに記入してください。
shōchi itashimashita. kochira ni kinyū shite kudasai.
Understood. Please fill this out.
蓮 Ren

はい、わかりました。
hai, wakarimashita.
Yes, I understand.

Sources

⭐Share⭐ to appreciate human effort 🙏