>>I've driven across the country more than once. There are no signs!!
>
>I don't recall any time-only signs, but I vaguely recollect "Welcome To" type of signs with mention of time zone...but you're right, mostly you're on your own to find out.
>
>>Most of the time zones here in the USA are done by state lines where
>>possible. But there are exceptions. There is one small town in
>>Indiana that refuses to accept summer daylight time. There is another
>>small town in Texas that chnages the time two hours in order to take advantage of the added light.
>
>Indiana's almost all year-round EST -- check out the link in one of my other posts, all the quaint details of Indiana-time are there :)

There is a time-only sign near me here in Florida...about 50 miles west, as you prepare to cross the Appalachacola, there is a sign "Entering Central Time Zone"