Whats up with the error message “WARNING: longitude differs from time zone meridian…”?
This means that you have specified a longitude that isn’t anywhere near the time zone meridian that would be expected for that value. For example, if you’re at longitude 120 degrees West, and you leave the “Time Zone” input set to its default value of “GMT”, the program will detect that there is 120 degrees of difference between your local longitude and the time zone meridian, and alert you that one is incorrect. This error message most frequently appears if you have the longitude “East/West” pulll-down menu set incorrectly.