What is the time zone of Bogotá, Colombia?

Which of the following cities is in the UTC-6 time zone? Which time zone is used in Mexico City, Mexico? Which of the following cities is in the UTC-10 time zone? Which time zone is used in Lima, Peru? In which time zone is the city of Melbourne, Australia located? Which time zone is the city of Buenos Aires, Argentina located in? In which time zone is the city of Toronto, Canada located? What is the name of the peninsula in Southeast Asia where Malaysia and Singapore are located?