73 cities have been added to the World Clock Deluxe database which now contains over 1,500 cities. New cities are:
| Antigua and Barbuda | Codrington |
| Bahamas | Freeport |
| Belarus | Brest, Homyel', Hrodna, Mahilyow, Vitsyebsk |
| Botswana | Francistown |
| Burkina Faso | Bobo-Dioulasso |
| Cape Verde | Mindelo |
| Caribbean Netherlands | Bonaire, Saba, Sint Eustatius |
| China | Nanchang |
| Cocos (Keeling) Islands | West Island |
| Côte d'Ivoire | Bouaké, Daloa |
| Cuba | Camagüey, Holguín |
| Dominican Republic | Concepción de la Vega, La Romana, Puerto Plata, Santiago de los Caballeros |
| France | Amiens, Caen, La Rochelle, Poitiers |
| Gabon | Port-Gentil |
| Ghana | Kumasi, Sekondi-Takoradi, Tamale |
| Guadeloupe | Pointe-à-Pitre |
| Haiti | Cap-Haïtien |
| Iraq | Karbala, Kirkuk, Najaf, Nasiriya, Sulaimaniya |
| Ireland | Waterford |
| Jamaica | Montego Bay, Negril, Ocho Ríos, Port Antonio |
| Malawi | Mzuzu |
| Mauritania | Néma, Nouadhibou, Zouérat |
| Palau | Melekeok |
| Puerto Rico | Ponce |
| Republic of the Congo | Pointe-Noire |
| Rwanda | Ruhengeri |
| Senegal | Thiès, Touba, Ziguinchor |
| Sierra Leone | Bo, Kenema, Koidu |
| Sint Maarten | Philipsburg |
| Swaziland | Manzini |
| Trinidad and Tobago | San Fernando |
| Tunisia | Djerba, Kairouan, Monastir, Sfax, Sousse, Tataouine |
| Uganda | Gulu |
| United Kingdom | Newcastle upon Tyne |
| Western Sahara | Dakhla, Smara |
| Zambia | Kitwe, Livingstone, Ndola |
Cities can now have two daylight-saving time periods in the same year. There are countries, in fact, that suspend daylight-saving time during Ramadan and then resume it.
Daylight-saving information for the Gaza Strip, Morocco, Syria, the West Bank, and Western Sahara has been updated. From this year, Morocco and Western Sahara will observe daylight-saving time from the last Sunday in April to the last Sunday in September with the exception of Ramadan (estimated start and end dates for Ramadan in 2012 are July 20 and August 18). Syria advanced the start of DST from the first Friday in April to the last Friday in March. The Gaza Strip and the West Bank started daylight-saving time together this year, both at midnight on the last Thursday in March.
The geographical coordinates of Port-au-Prince, Haiti and Basse-Terre, Guadeloupe have been corrected, the dissolved Netherlands Antilles have been replaced by Curaçao and the Caribbean Netherlands, and the Beerenberg volcano in Jan Mayen has been replaced by the Olonkinbyen settlement.
Some minor memory leaks have been eliminated, some minor bugs have been solved, and some minor interface improvements and fixes have been introduced.