How to Say ‘Since when?’ in Japanese
いつから？
itsu kara
[ee-tsu kah-rah]
💬 Usage Tip: [いつから？] is short and casual. Polite version: [いつからですか？].
🇯🇵 In Japan: Japanese often drops words like [ですか] in casual speech, especially in quick back-and-forth troubleshooting.
Phrase Breakdown
いつ
itsu
[ee-tsu]
when
Asking about the starting point in time; with から becomes “since when?”
お湯が出ないの？いつから？
The hot water isn’t coming out? Since when?
から
kara
[kah-rah]
since; from
Indicates a starting point (time/place). いつから = since when.
いつからお湯が出ないんですか。
Since when has the hot water not been coming out?
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