IN THE NICK OF TIME

At some point of time in your life, you must have faced a situation where you did something just in time, with a few seconds to spare, or before it was too late, which in turn saved you from unpleasant consequences. The idiom 'in the nick of time' basically means being able to get something done, just before the deadline. 

When you do something in the nick of time, you are doing something just before the time runs out, In other words you are doing it on the exact moment. So when you do something just in time, or before time runs out, it means you have done your work in the nick of time. When a seriously ailing patient is admitted in hospital just in time, it means he reached the hospital in the nick of time, ruling out any negative consequences.
Example 01 : I got to the station just in the nick of time and jumped on the train, as it was leaving.
Ex 02 : In spite of getting stuck in the traffic, we reached the airport in the nick of time and made to our flight.
Ex 03 : Little John was desperate for a wee, and got to the toilet just in the nick of time.
Ex 04 : Jane got her application form submitted to the college in the nick of time, If she had arrived a day later, she would've missed the deadline.
Ex 05 : Jack made it to the fuel station in the nick of time, else he would have been stranded in the middle of the highway without any fuel.
Ex 06 : Janet was almost drowning in the swimming pool, the lifeguard spotted her and saved her in the nick of time. 
Ex 07 : The bomb squad arrived in the nick of time and diffused the explosives, saving many innocent lives.
Ex 08 : William completed the financial reports in the nick of time, before presenting them to the client, he had all the figures on the tip of his tongue.
Ex 09 : Spiderman swept down and saved the damsel in distress just in the nick of time.
Ex 10 : The doctors decided to operate the injured man in the nick of time, to save his life.