St. Thomas operates on Eastern Standard Time (EST), which is UTC-5 during winter and Eastern Daylight Time (EDT), which is UTC-4 during summer. To find the current time in St. Thomas, subtract 5 hours from UTC during winter months and 4 hours during summer months.

Yes, St. Thomas and most of Canada observe Daylight Saving Time. The clocks go forward 1 hour to Eastern Daylight Time (EDT, UTC-4) in early March and go back 1 hour to Eastern Standard Time (EST, UTC-5) in early November.

London (GMT/BST): St. Thomas is 5 hours behind London when the UK is on GMT (winter), and 6 hours behind when the UK is on BST (summer). During Canada's summer (when EDT is in effect), subtract 1 more hour from the difference.

New York (EST/EDT): St. Thomas is in the same time zone as New York, so there is no time difference between the two cities.

Tokyo (JST): St. Thomas is 14 hours behind Tokyo, as Japan Standard Time is UTC+9. During Canada's summer (when EDT is in effect), St. Thomas is 13 hours behind Tokyo.

Canada's major cities include Toronto (the largest), Montreal, Vancouver, Calgary, Ottawa (the capital), Edmonton, and Winnipeg. St. Thomas is a city in southwestern Ontario.

St. Thomas is a city in southwestern Ontario, known for its railway heritage, the Jumbo the Elephant monument (commemorating a circus elephant that died there), the Elgin County Railway Museum, and as a major manufacturing and agricultural center. The city is also famous for its historic downtown, proximity to Lake Erie, and its role in Ontario's industrial history.