Library of Congress
Loc: America's Story: Four Standard Time Zones Introduced
How and why did the United States come to have four time zones? Learn about how cities and railroad travel impacted the development of these zones. Includes video (requires RealPlayer).
TED Talks
Ted: Ted Ed: How Did Trains Standardize Time in the United States?
This animated video explains the relationship between time zones and trains. If you live in the United States, you live in one of the standardized time zones. But these time zones have not always been around. In fact, it's a fairly...
ReadWriteThink
Read Write Think: On This Day in 1918, the u.s. Passed the u.s. Standard Time Act
A classroom activity commemorating the 1918 Standard Time Act and aiding students in learning about differing time zones. Includes lesson plans, web links and an annotated bibliography. From March 19, 2007.
Other
Time and date.com: The World Clock Time Zones
This website has a variety of time resources. You can find a major city and its time. If you click on that city it will give you lots of information.
Other
Time Zones for P Cs
This site from Time Zones for PCs provides a colorful, interactive maps of the United States and the world. Click on one of the starred cities to find out what time it is there.
Curated OER
Educational Technology Clearinghouse: Maps Etc: Railroads in United States, 1910
A map from 1910 of the United States showing the railway network and connecting steamship lines. This map distinguishes the transcontinental railroads and secondary lines, and shows the standardized time zones used in 1910. The clock...
Curated OER
Etc: Maps Etc: Standard Time in the United States, 1910
A map from 1910 of the United States showing the time zones as they were then established. Clock-symbols at the bottom of the map show the comparative times when it is noon in London. "Formerly every city used its own sun time, or local...
Curated OER
Etc: Maps Etc: Commercial Map of the United States, 1872
A commercial map from 1872 of the United States showing the principal railroad and steamship routes in the region at the time. The map shows state boundaries and capitals, major cities and ports, submarine telegraph cables to Europe,...
Curated OER
Educational Technology Clearinghouse: Maps Etc: Standard Time Belts, 1903
A map from 1903 of the United States showing the time zones as they were then established. "The heavy dotted line shows the arbitrary divisions of time in the United States. The plus and minus marks on either side of the meridian lines...
Curated OER
Educational Technology Clearinghouse: Maps Etc: Standard Time Belts, 1901
A map from 1901 of the United States showing the time zones as they were then established.
Curated OER
Time Zones for P Cs
This site from Time Zones for PCs provides a colorful, interactive maps of the United States and the world. Click on one of the starred cities to find out what time it is there.
Curated OER
Time Zones for P Cs
This site from Time Zones for PCs provides a colorful, interactive maps of the United States and the world. Click on one of the starred cities to find out what time it is there.
Curated OER
Time Zones for P Cs
This site from Time Zones for PCs provides a colorful, interactive maps of the United States and the world. Click on one of the starred cities to find out what time it is there.
Curated OER
Time Zones for P Cs
This site from Time Zones for PCs provides a colorful, interactive maps of the United States and the world. Click on one of the starred cities to find out what time it is there.
Curated OER
Time Zones for P Cs
This site from Time Zones for PCs provides a colorful, interactive maps of the United States and the world. Click on one of the starred cities to find out what time it is there.
Curated OER
Time Zones for P Cs
This site from Time Zones for PCs provides a colorful, interactive maps of the United States and the world. Click on one of the starred cities to find out what time it is there.
Curated OER
Etc: Maps Etc: Commercial Map: United States, Canada, Mexico, 1904
North American commercial activities including: major agricultural crops (barley, corn, wheat, coffee, tobacco, et cetera) and secondary agricultural crops (oranges, lumber, wine); primary mining extraction (coal, gold, silver,...