Based on the ideas from the Olson Database, this will provide native Delphi code that converts perfectly between UTC and local time, even for historic timestamps, and as far as possible, also for future timestamps.
my_delphi_cron is a cron like for Windows Systems Compared to other cron-like : -> It is developped with Delphi -> MySQL or XML can be used for Database -> It should be as simple as possible
rpLaunch is usefull manager for nnCron (www.nncron.ru) cron-files and separate tasks. nnCron - the best scheduler ever. But its interface not too userfrendly. rpLaunch allow to manipulate nnCron tasks via GUI.