We know that hour, minute and second are the units, we use to measure the time. Now we will practice the questions given in the worksheet on conversion of time.

**I. Fill in the blanks:**

(i) The long and thick hand of a clock shows _______.

(ii) The short hand of a clock shows _______.

(iii) The long and thin hand of a clock which moves faster shows _______.

(iv) There are _______ seconds in 10 minutes.

(v) There are _______ seconds in half an hour.

(vi) There are _______ minutes in three hours.

(vii) There are _______ hours in two days.

(viii) There are _______ days in five weeks.

(ix) There are _______ weeks in two years.

(x) There are _______ months in one an half years.

(xi) A century has _______ years.

**II. Convert into
minutes:**

(i) 9 hours

(ii) 7 hours 35 minutes

(iii) 8 hours 20 minutes

(iv) 3 hours 15 minutes

(v) 5 hours 17 minutes

(vi) 9 hours 29 minutes

(vii) 280 seconds

(viii) 790 seconds

(ix) 980 seconds

(x) 405 seconds

(xi) 1 hour 36 minutes

(xii) 4 hours 5 minutes

(xiii) 3 hours 12 minutes

(xiv) 2 hours 37 minutes

(xv) 5 hours 17 minutes

(xvi) 8 hours 14 minutes

**III. Convert into
hours and minutes:**

(i) 150 minutes

(ii) 210 minutes

(iii) 520 minutes

(iv) 317 minutes

(v) 458 minutes

(vi) 827 minutes

(vii) 2700 seconds

(viii) 5340 seconds

(ix) 12720 seconds

(x) 217 minutes

(xi) 440 minutes

(xii) 630 minutes

(xiii) 3660 seconds

(xiv) 3720 seconds

(xv) 9720 seconds

**IV. Convert into
seconds:**

(i) 1 hours 24 seconds

(ii) 20 minutes 45 seconds

(iii) 18 minutes 28 seconds

(iv) 2 hours 12 seconds

(v) 36 minutes 17 seconds

(vi) 15 hours 19 seconds

** **

**V. Convert the following minutes into seconds.**

(i) 15 minutes

(ii) 20 minutes

(iii) 12 minutes

(iv) 40 minutes

(v) 55 minutes

**VI. Convert the following minutes and seconds into seconds.**

(i) 30 minutes 15 seconds

(ii) 45 minutes 20 seconds

(iii) 50 minutes 55 seconds

(iv) 20 minutes 12 seconds

(v) 15 minutes 15 seconds

**VII.** **Convert the following hours and minutes to minutes.**

(i) 3 hours 40 minutes

(ii) 2 hours 20 minutes

(iii) 11 hours 10 minutes

(iv) 12 hours 30 minutes

(v) 9 hours 15 minutes

**VIII. Convert the following seconds to minutes and seconds.**

(i) 365 seconds

(ii) 512 seconds

(iii) 480 seconds

(iv) 220 seconds

(v) 1024 seconds

**IX. Convert the following days and hours to hours.**

(i) 4 days 3 hours

(ii) 1 day 6 hours

(iii) 8 days 12 hours

(iv) 12 days 13 hours

(v) 17 days 9 hours

**X. Convert the following hours to days and hours.**

(i) 55 hours

(ii) 36 hours

(iii) 48 hours

(iv) 100 hours

(v) 96 hours

**XI. Convert the following to days.**

(i) 4 weeks

(ii) 7 weeks 3 days

(iii) 12 weeks 5 days

(iv) 10 weeks 6 days

(v) 9 weeks

**XII. Convert the following to weeks and days.**

(i) 30 days

(ii) 35 days

(iii) 54 days

(iv) 90 days

(v) 105 days

**XIII. Convert the following to months.**

(i) 3 years

(ii) 3 years 7 months

(iii) 9 years 2 months

(iii) 16 years 3 months

(iv) 25 years

**XIV. Convert the following to years and months.**

(i) 60 months

(ii) 75 months

(iii) 38 months

(iv) 92 months

(v) 83 months

**XV. Use a.m. or p.m.**

(i) 7:35 in the morning

(ii) 6:45 in the evening

(iii) 2:20 midnight

(iv) 4:35 in the evening

(v) 8:48 in the morning

(vi) 12:50 afternoon

(vii) 5:05 in the evening

(viii) 11:27 at night

(ix) 8:36 in the morning

(x) 9:17 at night

**XVI. What was the time before 6 hours?**

(i) 3:20 a.m.

(ii) 5:45 p.m.

(iii) 9:15 a.m.

(iv) 12 midnight

(v) 12 noon

(vi) 2:15 p.m.

(vii) 10:05 a.m.

(viii) 12:45 p.m.

(ix) 3.27 a.m.

(x) 5:27 p.m.

(xi) 2:14 p.m.

(xii) 3:08 a.m.

** **

**XVII. What will be the time after 4 hours?**

(i) 5:40 a.m.

(ii) 8:30 p.m.

(iii) 1:25 a.m.

(iv) 5:20 a.m.

(v) 3:05 p.m.

(vi) 2:30 p.m.

(vii) 5:15 p.m.

(viii) 2:15 a.m.

(ix) 5:17 p.m.

(x) 2:34 a.m.

(xi) 7:18 p.m.

(xii) 1:27 a.m.

** **

Answers for the worksheet on measurement of time are given below.

**Answers:**

**I.** (i) minutes

(ii) hours

(iii) seconds

(iv) 600

(v) 1800

(vi) 180

(vii) 48

(viii) 35

(ix) 104

(x) 18

(xi) 100

**II.** (i) 540 minutes

(ii) 455 minutes

(iii) 500 minutes

(iv) 195 minutes

(v) 317 minutes

(vi) 569 minutes

(vii) 4 minutes 40 seconds

(viii) 13 minutes 10 seconds

(ix) 16 minutes 20 seconds

(x) 6 minutes 45 seconds

(xi) 96 minutes

(xii) 245 minutes

(xiii) 192 minutes

(xiv) 157 minutes

(xv) 3 17 minutes

(xvi) 494 minutes

**III.** (i) 2 hours 30 minutes

(ii) 3 hours 30 minutes

(iii) 8 hours 40 minutes

(iv) 5 hours 17 minutes

(v) 7 hours 38 minutes

(vi) 13 hours 47 minutes

(vii) 45 minutes

(viii) 1 hour 29 minutes

(ix) 3 hours 32 minutes

(x) 3 hours 37 minutes

(xi) 7 hours 20 minutes

(xii) 10 hours 30 minutes

(xiii) 1 hour 1 minute

(xiv) 1 hour 2 minutes

(xv) 2 hours 42 minutes

**IV.** (i) 1 3624 seconds

(ii) 1245 seconds

(iii) 1108 seconds

(iv) 7212 seconds

(v) 2177 seconds

(vi) 54019 seconds

**V. **(i) 900 seconds

(ii) 1200 seconds

(iii) 720 seconds

(iv) 2400 seconds

(v) 3300 seconds

**VI. **(i) 1815 seconds

(ii) 2720 seconds

(iii) 3055 seconds

(iv) 1212 seconds

(v) 9015 seconds

**VII.** (i) 220 minutes

(ii) 140 minutes

(iii) 670 minutes

(iv) 750 minutes

(v) 555 minutes

**VIII. **(i) 6 minutes 5 seconds

(ii) 8 minutes 32 seconds

(iii) 8 minutes

(iv) 3 minutes 40 seconds

(v) 17 minutes 4 seconds

**IX. **(i) 99 hours

(ii) 30 hours

(iii) 204 hours

(iv) 301 hours

(v) 417 hours

**X. **(i) 2 days 7 hours

(ii) 1 day 12 hours

(iii) 2 days

(iv) 4 days 4 hours

(v) 4 days

**XI. **(i) 28 days

(ii) 52 days

(iii) 89 days

(iv) 76 days

(v) 63 days

**XII. **(i) 4 weeks 2 days

(ii) 5 weeks

(iii) 7 weeks 5 days

(iv) 12 weeks 6 days

(v) 15 weeks

**XIII. **(i) 36 months

(ii) 43 months

(iii) 110 months

(iii) 195 months

(iv) 300 months

**XIV. **(i) 5 Years

(ii) 6 Years 3 months

(iii) 3 Years 2 months

(iv) 7 Years 8 months

(v) 6 Years 11 months

**XV.** (i) 7:35 a.m.

(ii) 6:45 p.m.

(iii) 2:20 a.m.

(iv) 4:35 p.m.

(v) 8:48 a.m.

(vi) 12:50 p.m.

(vii) 5:05 p.m.

(viii) 11:27 p.m.

(ix) 8:36 a.m.

(x) 9:17 p.m.

**XVI.** (i) 9:20 p.m.

(ii) 11:45 a.m.

(iii) 3:15 a.m.

(iv) 6 p.m.

(v) 6 a.m.

(vi) 8:15 a.m.

(vii) 4:05 a.m.

(viii) 6:45 p.m.

(ix) 9.27 p.m.

(x) 11:27 a.m.

(xi) 8:14 a.m.

(xii) 9:08 p.m.

**XVII.** (i) 9:40 a.m.

(ii) 12:30 p.m.

(iii) 5:25 p.m.

(iv) 9:20 a.m.

(v) 7:05 p.m.

(vi) 6:30 p.m.

(vii) 9:15 p.m.

(viii) 6:15 a.m.

(ix) 9:17 p.m.

(x) 6:34 a.m.

(xi) 11:18 p.m.

(xii) 5:27 a.m.

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