The Honeywell RTH2410B1019 / E1 5-1-1-Day Programmable Thermostat offers a range of highly intuitive options for tailoring the schedule of your thermostat. This programmable thermostat on weekdays and Saturday / Sunday gives you the option to program weekdays separately from Saturdays / Sundays and comes fitted with four different program times per day. The tested and relatively simple programming logic that is used in similar thermostats that bear the Honeywell name is used by this programmable thermostat. In making this programmable thermostat, simple to access controls, expanded buttons and a big screen all come together. A programmable thermostat that is very manageable and highly sensitive to your settings is the end product.