Time Zone worksheet

1. Time in Honolulu: 12:49 AM, Fri, Feb 6, 2026

1. Find how far Nairobi's clocks are from UTC, the world reference clock, on that date (daylight saving time not observed)

   $\text{UTC+3}$$=3\text{\hspace{0.17em}h}$

2. Take that difference away from the local time. This gives the same moment in UTC, which every zone can start from

   $\text{13:49}-3\text{\hspace{0.17em}h}$$=\text{10:49 UTC}$

3. Find how far Honolulu's clocks are from UTC at that same moment (daylight saving time not observed)

   $\text{UTC−10}$$=\mathrm{-10}\text{\hspace{0.17em}h}$

4. Add that difference to the UTC time to get the clock time in Honolulu

   $\text{10:49}+\mathrm{-10}\text{\hspace{0.17em}h}$$=\text{00:49}$

5. Read it as a 12-hour time and date

   $\text{00:49}$$=\text{12:49 AM, Fri, Feb 6, 2026}$

2. Time in Buenos Aires: 10:12 PM, Tue, Apr 14, 2026

1. Find how far Sydney's clocks are from UTC, the world reference clock, on that date (daylight saving time not in effect)

   $\text{UTC+10}$$=10\text{\hspace{0.17em}h}$

2. Take that difference away from the local time. This gives the same moment in UTC, which every zone can start from

   $\text{11:12}-10\text{\hspace{0.17em}h}$$=\text{01:12 UTC}$

3. Find how far Buenos Aires's clocks are from UTC at that same moment (daylight saving time not observed)

   $\text{UTC−3}$$=\mathrm{-3}\text{\hspace{0.17em}h}$

4. Add that difference to the UTC time to get the clock time in Buenos Aires

   $\text{01:12}+\mathrm{-3}\text{\hspace{0.17em}h}$$=\text{22:12 on Apr 14, 2026}$

5. Read it as a 12-hour time and date

   $\text{22:12 on Apr 14, 2026}$$=\text{10:12 PM, Tue, Apr 14, 2026}$

3. Time in Auckland: 8:53 PM, Wed, Dec 10, 2025

1. Find how far Berlin's clocks are from UTC, the world reference clock, on that date (daylight saving time not in effect)

   $\text{UTC+1}$$=1\text{\hspace{0.17em}h}$

2. Take that difference away from the local time. This gives the same moment in UTC, which every zone can start from

   $\text{08:53}-1\text{\hspace{0.17em}h}$$=\text{07:53 UTC}$

3. Find how far Auckland's clocks are from UTC at that same moment (daylight saving time in effect)

   $\text{UTC+13}$$=13\text{\hspace{0.17em}h}$

4. Add that difference to the UTC time to get the clock time in Auckland

   $\text{07:53}+13\text{\hspace{0.17em}h}$$=\text{20:53}$

5. Read it as a 12-hour time and date

   $\text{20:53}$$=\text{8:53 PM, Wed, Dec 10, 2025}$

4. Time in Paris: 12:33 PM, Fri, Jun 27, 2025

1. Find how far Chicago's clocks are from UTC, the world reference clock, on that date (daylight saving time in effect)

   $\text{UTC−5}$$=\mathrm{-5}\text{\hspace{0.17em}h}$

2. Take that difference away from the local time. This gives the same moment in UTC, which every zone can start from

   $\text{05:33}-\mathrm{-5}\text{\hspace{0.17em}h}$$=\text{10:33 UTC}$

3. Find how far Paris's clocks are from UTC at that same moment (daylight saving time in effect)

   $\text{UTC+2}$$=2\text{\hspace{0.17em}h}$

4. Add that difference to the UTC time to get the clock time in Paris

   $\text{10:33}+2\text{\hspace{0.17em}h}$$=\text{12:33}$

5. Read it as a 12-hour time and date

   $\text{12:33}$$=\text{12:33 PM, Fri, Jun 27, 2025}$

5. Time in Vancouver: 2:40 AM, Thu, Oct 23, 2025

1. Find how far Amsterdam's clocks are from UTC, the world reference clock, on that date (daylight saving time in effect)

   $\text{UTC+2}$$=2\text{\hspace{0.17em}h}$

2. Take that difference away from the local time. This gives the same moment in UTC, which every zone can start from

   $\text{11:40}-2\text{\hspace{0.17em}h}$$=\text{09:40 UTC}$

3. Find how far Vancouver's clocks are from UTC at that same moment (daylight saving time in effect)

   $\text{UTC−7}$$=\mathrm{-7}\text{\hspace{0.17em}h}$

4. Add that difference to the UTC time to get the clock time in Vancouver

   $\text{09:40}+\mathrm{-7}\text{\hspace{0.17em}h}$$=\text{02:40}$

5. Read it as a 12-hour time and date

   $\text{02:40}$$=\text{2:40 AM, Thu, Oct 23, 2025}$

6. Time in Toronto: 6:16 AM, Tue, Jan 14, 2025

1. Find how far Buenos Aires's clocks are from UTC, the world reference clock, on that date (daylight saving time not observed)

   $\text{UTC−3}$$=\mathrm{-3}\text{\hspace{0.17em}h}$

2. Take that difference away from the local time. This gives the same moment in UTC, which every zone can start from

   $\text{08:16}-\mathrm{-3}\text{\hspace{0.17em}h}$$=\text{11:16 UTC}$

3. Find how far Toronto's clocks are from UTC at that same moment (daylight saving time not in effect)

   $\text{UTC−5}$$=\mathrm{-5}\text{\hspace{0.17em}h}$

4. Add that difference to the UTC time to get the clock time in Toronto

   $\text{11:16}+\mathrm{-5}\text{\hspace{0.17em}h}$$=\text{06:16}$

5. Read it as a 12-hour time and date

   $\text{06:16}$$=\text{6:16 AM, Tue, Jan 14, 2025}$

7. Time in Singapore: 11:03 AM, Mon, Aug 4, 2025

1. Find how far Istanbul's clocks are from UTC, the world reference clock, on that date (daylight saving time not observed)

   $\text{UTC+3}$$=3\text{\hspace{0.17em}h}$

2. Take that difference away from the local time. This gives the same moment in UTC, which every zone can start from

   $\text{06:03}-3\text{\hspace{0.17em}h}$$=\text{03:03 UTC}$

3. Find how far Singapore's clocks are from UTC at that same moment (daylight saving time not observed)

   $\text{UTC+8}$$=8\text{\hspace{0.17em}h}$

4. Add that difference to the UTC time to get the clock time in Singapore

   $\text{03:03}+8\text{\hspace{0.17em}h}$$=\text{11:03}$

5. Read it as a 12-hour time and date

   $\text{11:03}$$=\text{11:03 AM, Mon, Aug 4, 2025}$

8. Time in Athens: 4:56 AM, Mon, Aug 10, 2026

1. Find how far Dubai's clocks are from UTC, the world reference clock, on that date (daylight saving time not observed)

   $\text{UTC+4}$$=4\text{\hspace{0.17em}h}$

2. Take that difference away from the local time. This gives the same moment in UTC, which every zone can start from

   $\text{05:56}-4\text{\hspace{0.17em}h}$$=\text{01:56 UTC}$

3. Find how far Athens's clocks are from UTC at that same moment (daylight saving time in effect)

   $\text{UTC+3}$$=3\text{\hspace{0.17em}h}$

4. Add that difference to the UTC time to get the clock time in Athens

   $\text{01:56}+3\text{\hspace{0.17em}h}$$=\text{04:56}$

5. Read it as a 12-hour time and date

   $\text{04:56}$$=\text{4:56 AM, Mon, Aug 10, 2026}$

9. Time in Madrid: 9:57 AM, Wed, Aug 19, 2026

1. Find how far Dhaka's clocks are from UTC, the world reference clock, on that date (daylight saving time not observed)

   $\text{UTC+6}$$=6\text{\hspace{0.17em}h}$

2. Take that difference away from the local time. This gives the same moment in UTC, which every zone can start from

   $\text{13:57}-6\text{\hspace{0.17em}h}$$=\text{07:57 UTC}$

3. Find how far Madrid's clocks are from UTC at that same moment (daylight saving time in effect)

   $\text{UTC+2}$$=2\text{\hspace{0.17em}h}$

4. Add that difference to the UTC time to get the clock time in Madrid

   $\text{07:57}+2\text{\hspace{0.17em}h}$$=\text{09:57}$

5. Read it as a 12-hour time and date

   $\text{09:57}$$=\text{9:57 AM, Wed, Aug 19, 2026}$

10. Time in Bangkok: 5:14 PM, Sun, Apr 13, 2025

1. Find how far Halifax's clocks are from UTC, the world reference clock, on that date (daylight saving time in effect)

   $\text{UTC−3}$$=\mathrm{-3}\text{\hspace{0.17em}h}$

2. Take that difference away from the local time. This gives the same moment in UTC, which every zone can start from

   $\text{07:14}-\mathrm{-3}\text{\hspace{0.17em}h}$$=\text{10:14 UTC}$

3. Find how far Bangkok's clocks are from UTC at that same moment (daylight saving time not observed)

   $\text{UTC+7}$$=7\text{\hspace{0.17em}h}$

4. Add that difference to the UTC time to get the clock time in Bangkok

   $\text{10:14}+7\text{\hspace{0.17em}h}$$=\text{17:14}$

5. Read it as a 12-hour time and date

   $\text{17:14}$$=\text{5:14 PM, Sun, Apr 13, 2025}$