珍惜时间是非常重要的，以下是一些关于珍惜时间的谚语：

1、时间就是金钱。（Time is money.）

2、一寸光阴一寸金，寸金难买寸光阴。（An inch of time is an inch of gold, but you can't buy that inch of time with an inch of gold.）

3、少壮不努力，老大徒伤悲。（If you do not strive when you are young, you will regret it when you are old.）

4、明日复明日，明日何其多。（Tomorrow after tomorrow, how many tomorrows are there?）

5、勿谓寸阴短，既过难再获。（Do not say that an inch of shadow is short, once it has passed, it is hard to regain.）

6、光阴似箭，日月如梭。（Time flies like an arrow, and the sun and the moon pass like a shuttle.）

7、一日之计在于晨，一年之计在于春。（The plan for a day lies in the morning, and the plan for a year lies in the spring.）

8、时光不等人，岁月不饶人。（Time waits for no one, and the years spare no one.）

9、机不可失，时不再来。（Opportunities are not to be missed, and time will not come again.）

10、节约时间，就是延长生命。（Saving time is extending life.）

这些谚语提醒我们，时间是宝贵的资源，我们应该珍惜并有效利用它。