いつだって

expression

always; all the time; at any time

Emphatic colloquial expression meaning 'no matter when' or 'whenever'; often used in casual speech to stress that something is always true or happens without exception.

• 彼かれはいつだって遅ち刻こくする。

  He's always late, no matter when.

• いつだって君きみの味み方かただよ。