Walmart offers the AcuRite Wireless Weather and Intelli-Time Clock Station, model no. 00754, for $6.88. Opt for in-store pickup to avoid the $5.99 shipping charge. That's tied with last week's mention as the lowest price we've seen. (It's also the best deal now by $4.) It automatically sets the time, day, date (through 2050), and temperature, and requires five AA batteries (not included).