Key facts

  • The 2026 CET Graduation Logical Reasoning and Mathematics block explicitly lists Clock and Calendar, so this topic must train time-angle and date-day...
  • On a 12-hour analog clock, one hour mark represents 30 degrees, the minute hand moves 6 degrees per minute, and the hour hand moves 0.5 degrees per mi...
  • For a time H:M, the smaller angle between hour and minute hands is found from the absolute difference between 30H + 0.5M and 6M, then taking the small...
  • Calendar questions are solved by counting odd days: a common year shifts the weekday by 1 day and a leap year shifts it by 2 days.
  • Gregorian leap-year rules matter: years divisible by 100 are not leap years unless they are also divisible by 400.

Key Points at a Glance

  1. 1

    The 2026 CET Graduation Logical Reasoning and Mathematics block explicitly lists Clock and Calendar, so this topic must train time-angle and date-day reasoning.

  2. 2

    On a 12-hour analog clock, one hour mark represents 30 degrees, the minute hand moves 6 degrees per minute, and the hour hand moves 0.5 degrees per minute.

  3. 3

    For a time H:M, the smaller angle between hour and minute hands is found from the absolute difference between 30H + 0.5M and 6M, then taking the smaller of that value and 360 minus that value.

  4. 4

    In clock questions, distinguish exact time, approximate time, mirror image, fast clock and slow clock before applying a formula.

  5. 5

    Calendar questions are solved by counting odd days: a common year shifts the weekday by 1 day and a leap year shifts it by 2 days.

  6. 6

    Gregorian leap-year rules matter: years divisible by 100 are not leap years unless they are also divisible by 400.

  7. 7

    The safest CET method is to reduce the question to a count of minutes, degrees or odd days, then check whether the option asks for the same weekday, next weekday or previous weekday.

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Syllabus fit and exam approach

The current CET Graduation syllabus places this topic inside Logical Reasoning and Mathematics through two direct bullets: Clock and Calendar. That means the exam focus is not essay-like inference or outside general knowledge. It is controlled reasoning with time, angle, day count and option checking. A candidate should expect short MCQs where a small calculation decides the answer: the angle at a given time, the time when hands overlap, the weekday after a date shift, or the effect of a fast or slow clock.

The first rule is to classify the question before calculating. Clock questions may ask for angle, meeting of hands, opposite hands, mirror image, gained or lost time, or a wrong clock. Calendar questions may ask for weekday, leap year, repeated calendar, date interval or odd days. The calculation method changes with this classification. A formula used without identifying the question type often gives a nearby but wrong option.

Exam-ready habit: write the unit beside the number. Minutes, degrees, hours and days cannot be mixed casually. If the question says 20 minutes, the minute hand has moved 120 degrees, but the hour hand has also moved 10 degrees during those 20 minutes. If the question says 73 days after Monday, only the remainder after division by 7 affects the weekday. CET options usually punish exactly these unit mistakes.

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