I am certain they mean Weekday, not Daytime.
Just to clarify for the lesser or non baseball fan out there, Rangers daytime weekday games in recent seasons typically have been Thursday, and known inside baseball as "get away games," because they are scheduled on the last game of a homestand, when the team has a road game the next day, (usually Th/F). This allows the team to "get away" from their ballpark and into thier hotel without disrupting their normal routine. Such issues can be major politics behind the scenes.
The Cubs are a great example of a team with a great weekday baseball experience. The Rangers are an example of the worst, with a geographicaly undesireable park, that is also not suited to its climate, which makes it nearly impossible to generate a good fan response for such games.
Looking at home games on the schedule it appears Nolan cut those games back to (2), probably to boost ticket sales, and the (2) that remain are 1 April, 1 May. And I only see two other weekday, daytime games - Opening Day, and Memorial Day (also April May). Road game times are subject to our opponents decision making.