The NCERT solutions for class 3rd Maths chapter 4 explain students about time calculation & conversion –Hours and minutes, Minutes and seconds. It also covers addition of time, subtraction of time, time intervals, understanding of 24 hour clock, etc. It also helps student in understanding calendar that will gradually help in understanding dates, days, years, months, weeks and time in seconds, minutes and hours. These NCERT solutions will definitely help students to be well prepared for exams and puzzles will help in making their concepts clear. All the study materials are in PDF format and easy to download.