Patent ID: 7249061

Claim:
An electronic commerce method comprising: recording global regions where time adjustment is performed with respect to clock times in the global regions and time adjustment information related to details of the time adjustment into a time adjustment information memory; comparing a transaction available period for electronic commerce, provided through an information network, with the time adjustment information recorded in the time adjustment information memory; sending a first signal for generating a first screen via the information network to a computer of a seller when existence of an applicable time adjustment day in the transaction available period is determined as a result of the comparison, the first screen indicating a region name where the time adjustment is performed, an information notice notifying the seller that a change of the transaction available period for electronic commerce is required with respect to date and region thereof, and a button for selecting whether or not the change of the transaction available period for electronic commerce is acceptable by the seller prior to a start time of an electronic commerce transaction; notifying the seller on the first screen of an amount of time remaining for a transaction available period with respect to a specific item for sale; receiving an accept signal provided by the button indicating that the change of the transaction available period for electronic commerce is acceptable, from the computer of the seller via the information network, thereby changing the transaction available period of the specific item for sale using the time adjustment information prior to the start time of the electronic commerce transaction; and sending a second signal for generating a second screen via the information network to the computer of the seller, after receiving the accept signal, wherein the second screen facilitates the change of the transaction available period for the electronic commerce with respect to the specific item for sale based on the result of the selection of the button, thereby starting the electronic commerce transaction.