Update
Web app now includes weekday and weekend ToU rate tables. But it treats holidays like the day of the week they occur on, since holidays vary depending on utility company. Below is a Baltimore rate schedule that uses a single lower cost period for all hours on weekends, though the pricing is different between summer and winter. Sorry the periods aren’t named, but they are only numbered in the OpenEI database.
https://pgstats.shinyapps.io/UtilityToUCost/
Now with Data Tables as well !
Extended to include single price rate plans so you can pop between and compare.