Tim Lake is a young man from Cornwall, England. He grows up in a beach house with his father, his mother, his absent-minded uncle Desmond, and his free-spirited sister, Kit Kat.
At the age of 21, Tim is told by his father that the men of his family have a special gift: the ability to travel in time. This supernatural ability is subject to one condition- they can only travel to places and times they have been before. After his father discourages Tim to use his gift to acquire money or fame, he decides that he will use it to improve his love life.
Tim can't change history, but he can change what happens and has happened in his own life, so he decides to make his world a better place...by getting a girlfriend. Sadly, making Kit Kat’s friend Charlotte fall in love with him turns out not to be as easy as you might think. After that summer in Cornwall, Tim moves to London to pursue a career as a lawyer. He is going to live with his father’s old acquaintance, Harry, a misanthropic playwright. One night, Tim visits a Dans le Noir restaurant, where you eat in the dark, and it’s there where Tim meets the beautiful but insecure Mary. The two flirt in the darkness of the restaurant and Mary gives Tim her phone number.
Trying to help his father’s friend, he has to travel back in time, but this unfortunate time-travel incident means he's never met Mary at all. So they meet for the first time again-and again, and, finally, after a lot of time-travelling, he wins her heart. After some time, they move in together and Tim meets Mary’s parents.
Tim then uses his power to create the perfect romantic proposal, to save his wedding from the worst best-man speeches, to save his best friend from professional disaster and to get his pregnant wife to the hospital in time for the birth of their daughter, despite a nasty traffic jam outside Abbey Road. But as his unusual life progresses, Tim finds out that his unique gift can't save him from the sorrows and ups and downs that affect all families, everywhere. There are great limits to what time travel can achieve, and it can be dangerous too.
About Time is a comedy about love and time travel, which discovers that, in the end, making the most of life may not need time travel at all.