Daylight Saving Times (Summer Times) are updated automatically!

      Global TimePiece provides a quick and easy method to display World Time - the date and time of 1650 cities around the world, by country, compared to the user's PC clock.  The user's location is selected from a database of 1400 cities, representing all time zones and fractional time zones - all other functions are computed, and the daylight saving time is automatically updated for each city and country throughout the year.  World time varies during the year due to changes in daylight saving times (summer times).  The majority of countries and cities do not observe DST.  In some countries, there are periodic governmental changes of the dates that daylight saving time is observed.  Some countries change the dates yearly, eg. Israel.  Some states and cities may observe DST different than their country, eg. Arizona, USA, Alice Springs, Australia.  Beginning and ending daylight saving time dates were obtained from the US Department of Transportation, Official Airline Guide, personal communications and numerous internet sites.  Some of the DST dates are undoubtedly inaccurate, and will be corrected as they are acquired.  International time and zones are political and do not necessarily comply with 15 degree geographic zones; therefore, global time is divided into irregular zones, often for convenience of neighboring cities, states and countries, eg. Kiribati.   This world time program utilized 24 zones beginning with zone 1 east of the International Date Line and ending with zone 24 at the IDL, instead of +12 and -12 zones from GMT.