Navigator 2.0, Internet Explorer 3.0
A string representation of the date and time specified by the Date object date. The date is converted from the local time zone to the GMT time zone before being converted to a string.
toGMTString() converts a date to a string using the GMT time zone. The format of the returned string is platform dependent, but usually it will appear something like this:
Tue, 02 Apr 1996 02:04:57 GMT