An event management program for controlling a distributed system that performs distributed processing with a plurality of processes, wherein the event management program causes a computer to perform a procedure comprising: obtaining a first timer event issuance request produced by a first process that the computer executes as one of the plurality of processes; determining a first reference time based on the first timer event issuance request; transmitting first timer event issuance timing information including the first reference time to another computer that executes a second process as another one of the plurality of processes, the first timer event issuance timing information relating to a first timer event to be issued in response to the first timer event issuance request; receiving second timer event issuance timing information including a second reference time from the another computer, the second timer event issuance timing information relating to a second timer event to be issued by the another computer in response to a second timer event issuance request produced by the second process; the event management program being characterized by further comprising: establishing a common reference time based on the first and the second reference time wherein the common reference time is established based on the first and the second reference time by the another computer separately; and issuing the first timer event to the first process in response to the first timer event issuance request when a predetermined wait time elapses from the common reference time in parallel processing of issuing of the second timer event by the another computer. obtaining a first timer event issuance request produced by a first process that the computer executes as one of the plurality of processes; determining a first reference time based on the first timer event issuance request; transmitting first timer event issuance timing information including the first reference time to another computer that executes a second process as another one of the plurality of processes, the first timer event issuance timing information relating to a first timer event to be issued in response to the first timer event issuance request; receiving second timer event issuance timing information including a second reference time from the another computer, the second timer event issuance timing information relating to a second timer event to be issued by the another computer in response to a second timer event issuance request produced by the second process; the event management program being characterized by further comprising: establishing a common reference time based on the first and the second reference time wherein the common reference time is established based on the first and the second reference time by the another computer separately; and issuing the first timer event to the first process in response to the first timer event issuance request when a predetermined wait time elapses from the common reference time in parallel processing of issuing of the second timer event by the another computer. establishing a common reference time based on the first and the second reference time wherein the common reference time is established based on the first and the second reference time by the another computer separately; and issuing the first timer event to the first process in response to the first timer event issuance request when a predetermined wait time elapses from the common reference time in parallel processing of issuing of the second timer event by the another computer.