Hey!!! it looks like you are copy pasting stuffs from various forums out here... for fun???
I found the exact question that you had asked here:
Time Zone list in Excel
Answer to your question is also in that forum:
If the programmer is using PHP, they could use the standard names for the timezones, contained here:
That's the list of all valid PHP timezones. You could simply copy those, put each name on it's own line, and give that to the developer in excel or text-file format. If you wanted more details, you could check out the source: