I agree, there are many cron plugins.
But i was searching for plugin, that can execute command in specified time after map is starter/restarted.
To illustrate what i was looking for, i give an example.
It was needed by gungame server, and i added two lines in server.cfg
Code:
mani_vote_rock_the_vote_threshold_percent 60
gamecron_clear
gamecron_add 600 "mani_vote_rock_the_vote_threshold_percent 100"
So players can rock the vote right after map is starter and 60% of players can run change the map. But after 10 minutes of playing this value changes to 100%, so players can change map only if all players decided to do that. This is very specific situation. After 10 minutes of playing some players can achive very high level and this plugin can prevent other players to reset map for example.