"time's up" in Japanese
 

I have heard this many times, but I don't know exactly what it is... could someone please give me the kana or romanji for "time's up" in Japanese? Thanks!

Mou jikan yo

時間切れ(です)　jikan gire (desu)

I would've just gone with...

Taimu appu desu!
タイムアップです!

it sounded more like "shuryo" or something.... I don't know..

終了 【しゅうりょう】 (n,vs) end; close; termination;

There's always a dozen different ways to say anything.

もう時間よ is fine if you are female.

そろそろ、時間だよ～（笑顔してxd)
Oh,　you mean 終了しました？

yay! thanks!

My Japanese teacher likes 時間です。

終了 is good for a game or sport competition.

時間です is good for a test or exam that has a time limit.