EST, EDT and DST

DST - Daylight Saving Time / Summer Time. Daylight Time is used instead of Standard Time Ex: Eastern Standard Time == Eastern Daylight Time USA have 9 standard time zones. #1- AST (Atlantic Standard Time), #2- EST (Eastern Standard Time), #3- CST (Central Standard Time), #4- MST (Mountain Standard Time), #5- PST (Pacific Standard Time, #6- AKST (Alaskan Standard Time), #7- HST (Hawaiian-Aleutian Standard Time), #8- SST (Samoa Standard Time) and #9- ChST (Chamorro Standard Time) DST begins @ 2 am on the second Sunday in March like for the year 2010 it's March 14. Ends @ 2 am on the first sunday of November, for yr 2010 it's November 7. Places in: PST: California, Nevada, Oregon and Washington MST: Arizona, Colorado, Idaho, Montana, New Mexico, South Dakota, Utah and Wyoming CST: Alabama, Arkansas, Florida-Pensacola, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Minnesota, Mississippi, Missouri, Nebraska, North and South Dakota, Oklahoma, Tennessee, Texas and Wisconsin EST: Connecticut, Delaware, District of Columbia, Florida, Goergia Indiana, Kentucky, Maine, Maryland, Massachusetts, Michigan, New Hampshire, New Jersey, New York, North and South Carolina, Ohio, Pennsylvania, Rhode Island, Tennessee-Chatanooga and Knoxville, Vermont, Virginia and West Virginia SST: American Samoa-Pago-pago and Midway Islands- Midway ChST: Mariana Islands- Guam and North Mariana Islands-Saipan HST: (HDT) Alaska-Adak, Hawaii AKST: Alaskka- Anchorage, Fairbanks, Juneau, Nome and Unalaska AKST == PST == MST == CST == EST == AST (1 hour interval) SST == HST (1 hour interval) HST == AKST (2 hours interval) AKST == ChST (13 hours interval) Examples: PST is 1 hr late from MST. Ex: If it's 6 am in Washington then it's 7 am in Arizona EST is 6 hrs ahead of HST. Ex: If it's 8 am in Delaware then it's 2 am in Hawaii AKST is 18 hours late from ChST Ex: If it's 4 am in Alaska then it's 10 pm in Guam I think that wraps it up. Sorry this is the best I can explain it to you. I'm not perfectly sure if all I've typed are right though. If there's a mistake, please correct it. I hope it helps you... ^_^

You can also check out this site for the time though... worldtimezone (dot) com (slash) time-usa12 (dot) php