比赛时间的英文表达是 "competition time"。这个词的来源是由两个单词 "competition" 和 "time" 组合而成，"competition" 是指比赛，"time" 是指时间。

例句：

"It's competition time! Let's get ready to start the game." (现在是比赛时间了！让我们准备开始比赛。)

"The competition time is set for 3 pm this afternoon." (比赛时间定在今天下午3点。)

"Please be punctual and arrive at the competition venue on time." (请守时，按时到达比赛场地。)