(Have) you got a minute?

(Have) you got a time?

(Have) you got a moment?

(Have) you got a second?

前4种，多为美语口语

(Have) you got any free time?

Are you free?

Do you have any spare time?

后3中，多为英式英语，free本意是自由的，不受拘束的，用are you free?其实相当于问“你什么时候不忙” Spare本意是抽出、节省，用Do you have any spare time?其实直译的话，是“你能抽出点时间来嘛？”