The words "Time Zone" are actually the Time Zone button. Clicking on them will bring up a dialog box asking you what region or area/city code you want to find the time of. Type the region or code, and the stack will search for the characters (case doesn't matter) in the Region field or the Area/City Codes field if you enter an area or city code. If the text cannot be found in the Region field, the stack will search the Country field. Once it finds the card the region, country, or code is on, the stack will then tell you the current time and then the time it is in that region. (For example, "Here it is 10:00 PM. In Alabama, AL it is 12:00 AM.") For the time in a country only, when the Region field says, "All points," it is best to go to the card with the country on it and then type "all points" when asked for the region. That way you will get the time of the country on the current card. However, you can also enter the country name for searching even though the stack will search the Region field for the text first. For all purposes, 12:00 AM is treated as midnight, and 12:00 PM is treated as noon. This stack will adjust and report its times in 12- or 24-hour time, depending on how you set the Mac's clock from the General CDEV. Pressing Command-T or selecting "Time Zone..." from the Area/ZIP menu has the same effect as clicking on this button.
When you want to find the time in areas that have postal abbreviations, you can enter the text to look for or the area/city code, a comma, and then the postal abbreviation. This will take you to the appropriate region right away. For example, "an fran,ca", "415,ca" and ",ca" are all valid entries. You may notice that some area codes have a plus or minus sign after them. This signifies that that specific area code spans another time zone plus or minus one hour from the time zone of most of the region. Finding the time in an area code or state that spans more than one time zone will put the potential difference after the reported time. For example: "1:00 PM (+1 hour)".
The results you get depend on the Mac's clock setting and the options you select by using the Time Zone Select button. See the topic "The Time Zone Select Button" for more information.