Nearly every card in this stack contains eight major fields: Country, Time Zone, Region, Dial Preamble, Country Code, Area/City Code, ZIP Codes, and Locations. The Country field always contains the country in question, regardless of political boundaries. The Region field contains either a state or city in the country, or the field may be empty. All the information on the card always holds true for the region, or if there is no region specified, for the country.
The Time Zone field contains the number of hours east or west the country or region is of the Prime Meridian. The Prime Meridian runs through Greenwich, England, and the Greenwich Mean Time (GMT) is used as a relative standard in many situations. So for a region such as London, the Time Zone field would read GMT 0, or Greenwich Mean time, plus zero hours. California is GMT -8, and all points in Thailand are GMT 7. For the purposes of this stack, hours east of the Prime Meridian are POSITIVE, while those west of the Prime Meridian are NEGATIVE. Certain time zone maps will read the opposite way. You need never specify a place being more than twelve hours more or less than GMT, although this stack will not mind if you do otherwise.
For each card the Time Zone field will contain the time zone of the specific region. If the region field is empty or says "All points" then the time zone is applicable for the entire country.
If possible, each region is divided by either its area code, if the region is a state, its country code, if the country is not Canada or the U.S., or its city code, if the region is a city not in Canada or the U.S.. Where applicable, the areas in the region, next to their ZIP code, will appear in the Locations field.
Many U.S. states have more than one area code. If this is the case, there will be a small white arrow to the right of the area code in the area code field. Clicking on it will allow you to view the additional area codes for that state. Clicking on the additional area codes will remove them from view. For locations outside of the U.S., there will be a separate card for each area code in a location.
As much as possible, all abbreviations have been lengthened. So instead of "N", "S", "AFB" and "St.", places will have "North", "South", "Air Force Base", and "Saint".
