How to Say ‘Since when?’ in Japanese
いつから？
itsu kara
[ee-tsoo kah-rah]
💬 Usage Tip: [いつから？] is a quick, natural question: “Since when (has it been like that)?”
🇯🇵 In Japan: Casual style is common in spoken Japanese, even with tenants, but you can answer politely to stay safe.
Phrase Breakdown
いつ
itsu
[ee-tsoo]
when
「いつ」 asks “when.” With 「から」 it becomes “since when?”
お湯が出ないのは、いつから？
Since when has the hot water not been working?
から
kara
[kah-rah]
from; since
「から」 adds the meaning “from/since” to a time question, making 「いつから？」 = “Since when?”
いつからお湯が出ませんか。
Since when has the hot water not been working?
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