Answer: mtwtf

AnswerCrossword Clue
MTWTF

Attendance sheet letters

MTWTF

Weekday column headings

MTWTF

Datebook headings

MTWTF
Appt.-book string
MTWTF
Workweek letters
MTWTFDatebook heading
MTWTFWorkweek calendar headings
MTWTFLetters on a school schedule
MTWTFSchool calendar letters
MTWTFSomething seen in planners
MTWTFCalendar run
MTWTFWeekday sequence
MTWTFAbbr. on a class schedule
MTWTFAppt. book headings
MTWTFSeries often seen with S's on the ends
MTWTFCalendar heading
MTWTFDays of the week in a calendar heading
MTWTFWeekday run?
MTWTFDatebook letters
MTWTFWeekdays, for short
MTWTFAppt.-book headings
MTWTFLetters atop a school calendar
MTWTFCalendar letter sequence
MTWTFAppt. book string
MTWTFAppt. book sequence
MTWTFDatebook sequence
MTWTFWorkweek sequence: Abbr.
MTWTFCal. sequence
MTWTFNine-to-five string
MTWTFSequence seen between two esses
MTWTFWork calendar string
MTWTFPDA column headings
MTWTFCalendar string