@ TIME IS GOLD, as British say.

Do you know what's the WTZ? and the GMT? What time is in London while people in Otawa are sleeping?

1. The current BIG-BEN time
2. A bit of its history
3. The world time zone
4. The sun clock

5. Exercise: Clic on "What time is in.....?" and try to find in "Search for City or Place" the time for the following locations: Beijin (China), Vancouver (Canada), Salvador de Bahía (Brazil), Istambul (Turkey), Antananarivo (Madagascar), Acapulco (Mexico), Pevek (Russia), Yellowknife (Canada), Mawson (Australia) and Palau (Indonesia).