You can interface the programmable one-shot design in Figure 1 with any intelligent system, such as a PC, a µP, or a µC. The design uses a low-cost NE555 timer and an 8-bit AD7524 D/A converter.

Frontier TM619H2 Digital Timer Programmable Time Switch. Here’s a 4 pin programmable timer switch for home-usage. It employs a microprocessor which makes it reliable in terms of how it functions.

BN-LINK 7 Day Programmable in-Wall Timer Switch for Lights, Fans and Motors, Single Pole and 3 Way (Compatible with SPDT) Both Use, Neutral Wire Required, White(Blue Backlight) Buy at Amazon ...

Amazon offers the Leviton Vizia 24-hour Programmable Indoor Timer with Astronomical Clock for $22.10 Prime shipped. For comparison, it has a list price of $60 but usually sells for around $30 online.