Set your term dates and timetable once. Each day, tap "Attended" for whatever you went to — everything else works itself out, and it keeps working the same way for the rest of the year without any upkeep.
Term dates & rotation
Day timings drive the hour-by-hour timetable in the Today card: postings run morning to lunch, theory classes take one hour slot each from the afternoon resumption.
Your timetable's "1 / 2 / 3 / 4" labels mark a rotation that resets every calendar month: whatever week contains the 1st of the month is Week 1, no matter which weekday the month starts on. A 5th week in a longer month loops back to Week 1.
Mark attendance
Holidays
Single day above, or a vacation stretch (e.g. Dasara break) as a date range below.
Subjects & weekly timetable
Pre-filled from your Government Medical College, Yadadri — 3rd MBBS Phase-1 timetable. Each number is sessions per day. Tagged Posting/Class so the Today card can also mark a whole half-day at once — but every subject still keeps its own 75% total below.