A measurement device A includes a display section 10 capable of displaying measurement data obtained by measurement means 12, 13, 14a, a clock function section 16, an event time setting means 14b, 15 capable of setting the time of an event, and an elapsed time display processing means 14c that starts measurement of the elapsed time from the time of the event to the current time when the time of the event is set by the event time setting means and causes the display section 10 to display the elapsed time. With this arrangement, the user does not need to perform a troublesome task of calculating the elapsed time, and the measurement of a sample in a proper period of time after the event is promoted.
