At this point, fbb should point out that the 52/52a (and the 120 below) ate JOINT servicesd operated under the Sheffield Bus non-partnership. As you saw yesterday, the normal timetable involves both operators running alternately through the core of the routes. but in comes the crisis - out goes the partnership.
Ignoring the suggestion that Sunday services plus early extras where necessary should be the norm, First knocked everything back to hourly or two hourly. Meanwhile partner (don't laugh) Stagecoach operated every half hour.
therefore makes good sense to show the timetables separately bercause that it what they are. Not very partnership-ly coordinated.
120 : Crystal Peaks - City - Crimicar Lane (Fulwood) (ORANGE)