90 United States cities have been added to the World Clock Deluxe database which now contains over 1,400 cities. New cities are:
| Arizona | Chandler, Tempe, Window Rock |
| California | Burbank, Carlsbad, Chula Vista, Concord, Fairfield, Fontana, Fremont, Fullerton, Garden Grove, Glendale, Hayward, Huntington Beach, Irvine, Lancaster, Modesto, Moreno Valley, Oakland, Ontario, Oxnard, Palmdale, Pomona, Rancho Cucamonga, San Bernardino, Santa Ana, Santa Clara, Santa Clarita, Santa Rosa, Stanford, Sunnyvale, Temecula, Thousand Oaks, Torrance, Vallejo, Visalia, West Covina |
| Colorado | Fort Collins |
| Connecticut | Stamford |
| Florida | Gainesville, Hialeah |
| Georgia | Athens, Augusta, Columbus |
| Illinois | Evanston, Naperville, Peoria |
| Indiana | Evansville, South Bend |
| Kansas | Olathe |
| Louisiana | Lafayette |
| Massachusetts | Springfield |
| Michigan | Warren |
| Minnesota | Rochester |
| Missouri | Independence, Springfield |
| New Hampshire | Hanover |
| New Jersey | Elizabeth, Princeton |
| New York | Ithaca, Yonkers |
| North Carolina | Cary, Durham, Fayetteville, High Point, Wilmington, Winston-Salem |
| Ohio | Akron |
| Oklahoma | Norman |
| Pennsylvania | Allentown, Erie |
| Tennessee | Chattanooga, Clarksville |
| Texas | Beaumont, Denton, Garland, Grand Prairie, Irving, Lubbock, McAllen, Midland, Pasadena, Plano |
| Virginia | Arlington, Chesapeake, Newport News |
| Washington | Bellevue, Everett, Tacoma |
The offset from UTC of Samoa and Tokelau has been updated. At midnight on December 29, 2011, Samoa (which is currently observing daylight-saving time) and Tokelau jumped from east to west of the international dateline to align with trade partners, moving from UTC-10 to UTC+14.
The offset from UTC of the Australian Antarctic stations Casey and Davis has been updated. To comport with operational schedules from their supply bases, Davis moved from UTC+7 to UTC+5, while Casey moved from UTC+8 to UTC+11.
Daylight-saving information for Brazil, Iran, Israel, and Samoa has been updated. Due to Carnival, DST in Brazil will end one week later this year, on the fourth Sunday in February. In 2012, Iran will observe daylight-saving time from March 21 to September 21, while Israel will observe daylight-saving time from March 30 to September 23. From this year, DST in Samoa will end on the first Sunday in April.