[schlumpf2005]

guckst du hier ^^ Task Scheduler

Steht ganz oben

Flags:
m - time is in minutes 
s - time is in seconds 
r - repeat task 
t - specific time (0:00-23:59, assumes "r" flag)

For example to restart the round every 5 minutes use:
amx_task 5 "sv_restart 1" mr