Hello. I'm posting here, because this forum is a much popular than dev-resource. advancedDiode — is a server-side mod, which give you opportunity to build custom circuits using redstone repeaters ( diodes ). You can define any timing from 1 second up to 2 147 483 647 seconds ( max signed int size ). I'm planing to add suffixes for delay time definitions ( M — minutes, H — hours ), but not sure it is necessary. Bukkit-dev page: http://dev.bukkit.org/server-mods/advdiode/ Official home page: http://azure.km.ua/minecraft/advancedDiode/ Feel free to submit your proposals here, or post ticket on bukkit-dev. Thanks.