working with leds

hELLO
i AM WORKING ON A PROJECT IN WHICH i HAVE TO LIGHT TwO SETS OF LEDS.
One set of led is white ultra bright led and other set is normal 5mm led red & green.
I need a circuit for the lamp which should switch on the white led for like 1hour and after that this white led gets dimm and other led (red & green) wil bright slowly.
In the circuit the time for glowing white led can be adjustable with timer. After making this circuit ,I will connect it with timer so that I can adjust  the 1hours time and then it gets dimm.
Please help me out in this circuit .I am searching from last one week but I couldnt find.
Thanks in advance

Simplest way is to use a micro like the PIC or Arduino.
+1, you could put this together in an afternoon with an Arduino.
+1
Otherwise it would take 7 or more ICs to do it
SanjaySingh (author) 5 years ago
I know how to make the basic circuit for led but dont know how to connect two led circuits according to time delay...help me...