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How to Say ‘When is your birthday?’ in Japanese

誕生日はいつですか。

tanjoubi wa itsu desu ka

[tan-joh-bee wah itsu dess kah]

💬 Usage Tip: いつ (itsu) means "when", and it fits into the same は…ですか question pattern. 誕生日 is said (tanjōbi).

Phrase Breakdown

誕生日は

tanjoubi wa

your birthday (topic)

誕生日 (tanjoubi) means 'birthday', and は is read 'wa'. Say 'tan-joo-bi-wa' with a long 'joo'.

Example

誕生日はケーキを食べます。

I eat cake on my birthday.

Words in this phrase

誕生日

tanjoubi

[tan-joh-bee]

birthday

The day someone was born; often used when mentioning celebrations.

Example

母の誕生日なので、特別なお席をお願いしたいです。

Since it is my mother's birthday, I would like to request a special seat.

は

wa

[wah]

topic marker; as for

A particle that marks the topic. Written は but pronounced わ.

Example

今日は体のサイズを確認します。

As for today, I will check the body size.

いつですか。

itsu desu ka

when is it?

いつ (itsu) means 'when'. Say 'i-tsu des-ka' and let your voice rise at the end.

Example

休みはいつですか。

When is the holiday?

Words in this phrase

いつ

itsu

[itsu]

when

Used to ask about time in a general sense, such as a starting date or schedule.

Example

いつから勤務できますか。

From when can you work?

です

desu

[dess]

is; polite copula

A polite sentence ending used in formal conversation.

Example

少し伺いたいです。

I would like to ask a little.

か

ka

[kah]

question particle

か is placed at the end of a sentence to mark it as a question in polite Japanese.

Example

先生ですか。

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