Entry_ID: (required) Entry_Title: Time Zones of the United States Group: Data_Set_Citation Originator(s): National Atlas of the United States Title: Time Zones of the United States Publication_Date: 200506 Publication_Place: Reston, VA Publisher: National Atlas of the United States URL: End_Group Keyword: Boundaries Group: Temporal_Coverage Start_date: 1972 Stop_date: 2005 End_Group Data_Set_Progress: Complete Group: Spatial_Coverage Southernmost_Latitude: 17 Northernmost_Latitude: 72 Westernmost_Longitude: 170 Easternmost_Longitude: -64 End_Group Location: United States Group: Data_Resolution Latitude_Resolution: 0.000278 Longitude_Resolution: 0.000278 End_Group Access_Constraints: None Use_Constraints: None. Acknowledgment of the National Atlas of the United States of America and (or) the U.S. Geological Survey would be appreciated in products derived from these data. Originating_Center: (required) Group: Data_Center Data_Center_Name: Earth Science Information Center, U.S. Geological Survey Group: Data_Center_Contact Last_name: Earth Science Information Center, U.S. Geological Survey First_name: N/A Phone: 1-888-ASK-USGS (1-888-275-8747) Phone: 703-648-5920 Group: Address 507 National Center Reston, VA 20192 End_Group End_Group End_Group Group: Distribution Distribution_Media: online Distribution_Format : ESRI Shapefile Fees: There is no charge for the map layer. End_Group Group: Distribution Distribution_Media: online Distribution_Format : SDTS Fees: There is no charge for the map layer. End_Group Group: Reference End_Group Group: Summary These data are intended for geographic display and analysis at the national level, and for large regional areas. The data should be displayed and analyzed at scales appropriate for 1:2,000,000-scale data. No responsibility is assumed by the National Atlas of the United States or the U.S. Geological Survey in the use of these data. This map layer portrays the time zones of the United States, Puerto Rico, and the U.S. Virgin Islands. Also included are the Greenwich Mean Time offset, and areas in the U.S. where daylight saving time is observed. This is a revised version of the September 2004 map layer. End_Group Group: Related_URL URL_Type: URL: Group: Description Originator: National Archives and Records Publication_Date: 1997 Title: Code of Federal Regulations, Title 49--Transportation, Subtitle A-- Office of the Secretary of Transportation, Part 71--Standard Time Zone Boundaries Publication_Information: Publication_Place: Washington, DC Publisher: National Archives and Records Administration Online_Linkage: End_Group End_Group Group: Related_URL URL_Type: URL: Group: Description Originator: National Weather Service Publication_Date: 1999 Title: Counties of the U.S. Publication_Information: Publication_Place: Silver Spring, MD Publisher: National Weather Service Online_Linkage: End_Group End_Group Group: Related_URL URL_Type: URL: Group: Description Originator: National Institute of Standards and Technology Publication_Date: Unknown Title: Time and Frequency from A to Z Publication_Information: Publication_Place: Boulder, CO Publisher: National Institute of Standards Technology Online_Linkage: End_Group End_Group Group: DIF_Author Last_name: Rawson First_name: Peg Email: atlasmail@usgs.gov Phone: 703-648-4183 Group: Address 12201 Sunrise Valley Drive Reston, VA 20192 End_Group End_Group DIF_Revision_Date: 20050616 Science_Review_Date: