Well, first of all, I believe that it is extremely unnecessary to use mktime or date. Try just doing:
print("<select name='minutes'>");
for ($x = 0; $x < 60; $x++) {
print("<option value='$x'>$x</option>");
}
print("</select>");
It's much cleaner, and still gets you what you are looking for. It is also better style to assign a value to each option, to avoid confusion later. Hope that helps!
Chris King