哪会儿

nǐ nǎ huì r zài jiā ne

你哪会儿在家呢？

When will you be home?

nǐ nǎ huì r yǒu shí jiān ne

你哪会儿有时间呢？

When will you be free?

nǐ nǎ huì r dōu kě yǐ lái

你哪会儿都可以来。

You can come whenever you like.

nǐ nǎ huì r fāng biàn jiù nǎ huì r lái

你哪会儿方便就哪会儿来。

Come at any time that is convenient to you.