hello guys, I'm new to arduino. I'm trying to make a project that Turn a machine on after a setted time (like when an alarm) and i don't know what i need to start. I'm lost in this.
any help or advice.
thanks a lot. 
How accurate does the timing need to be ?
Turn what on?
How will you set the time?
What Arduino do you have?
.
First thing you will probably require (aside from an Arduino) is a real time clock.
Otherwise info as previously requested.
Weedpharma