Clock alteration

Clock alteration is the method of changing the location of the hands on a clock or watch. This can have the effect to make a death appear to have happened at a certain time (if a body is found with a broken watch), or to give someone an alibi.

Agatha Christie stories where clock alteration have been used

 * The Adventure of Johnnie Waverly
 * Evil Under the Sun - One of the murderers changes the time on the clock of another person, to create an alibi.
 * The Love Detectives - One of the murderers changes the time of a clock, to suggest a time for when the murder took place.
 * The Murder at the Vicarage - One of the murderers changes the time of a clock, to suggest a time for when the murder took place.
 * Murder on the Orient Express - One of the murderers changes the time of a clock, to suggest a time for when the murder took place.
 * Appointment with Death - One of the murderers changes the time of a clock, to suggest a time for when the murder took place.
 * The Murder on the Links