It is time to rest from work.
该是放下工作休息的时候了
It is time to be old, to take in sail.这是该年老而收敛雄心的时候了。
Now it is time to find common ground.现在是谋求共同点的时候了。

Now it is time to think about the implementation.现在是时候考虑执行的问题了
It is high time to begin our plan.该是开始我们计划的时候了

Ladies and gentlemen, it is time to begin.各位女士先生们, 该开会了
Stand by, men; //www.souquanme.comit is time to begin the attack.士兵们，作好准备，该开始进攻了。
It is time to start work on 搜趣网my thesis.差不多该写毕业论文了。
You have pondered long enough; it is time to decide你考虑的时间够长的了, 该作决定了.
How will I know when it is time to board? 我怎么知道什么时候可以登机?

it is开头的句子的主语
1.It iswww.souquanme.com very kind of you to give me a hand in time
2.It i搜趣网s 9o'clock when I went home解析：1、It is 是形式主语,真正的主语是you 谓语是give,me和hand是宾语,me是间接宾语,hand是直接宾语.It is 是形式主语,不是真正的主语,英语中常用这种表达方式,防止头重脚轻.
2、It 是主语就是隐含的“它”的意思,它9点了,当我们走的时候,is 是谓语,9o'clock是宾语,when I went home是状语从句