North/south long distance roads that cross multiple time zones.

[SteveG1988]

For example I-65 runs mostly north/south with a little eastern to get over to Louisville OH and Nashville TN, but it mostly stays along a straight line, yet it crosses into and out of the central time zone, are there any other interstates that do this?

[Takumi]

I-85 Eastern-Central and I-15 Mountain-Pacific.

[cl94]

If I-69 doesn't yet, it will in the near future.

You could make a case for US 62, even though it is "officially" east-west, because it connects Mexico and Canada. It has stretches in eastern, central, and mountain. Pretty sure it's the only one (if we count it) to be in 3 time zones.

[adventurernumber1]

@Steve, you said interstates in the first post, but you said roads (taking that to mean any north-south Interstate or US Highway) in the title. So assuming US Highways might be candidates:

US 287 goes from the Central time zone into the Mountain time zone and gets decently close to the Pacific time zone.

US 11 goes from the Central time zone into the Eastern time zone.

US 127 goes from the Eastern time zone to the Central time zone (I could be pretty certain it passes through it) and back into the Eastern time zone again. US 27 is pretty close to entering the Central time zone for a good bit of its route, but I could be pretty sure it never actually enters it.

Here's a very interesting one: US 41 goes from the Eastern time zone into the Central into the Eastern again then into the Central again then into the Eastern time zone again 

As for interstates:

Once/if I-69 is ever completed, it'll pass through both the Central & Eastern time zones.

I-59 goes through the Central time zone and just barely enters the Eastern time zone before ending on I-24 in Georgia.

[vtk]

US 62 is what came to my mind first. In my head it's a north south route. This is probably a common perception for people along the route north of the Ohio river.

[cl94]

US 62 is what came to my mind first. In my head it's a north south route. This is probably a common perception for people along the route north of the Ohio river.

Heck, I live just over a mile from it where it is signed north-south

[dfwmapper]

For the times of the year when DST is in effect, I-15 passes through 3 timezones in 30 miles. Nevada is on PDT, Arizona is on MST, and Utah is on MDT. Only 2 times, but 3 zones.

If we count non-Interstates, US 95 goes from Mountain in Arizona to Pacific in California/Nevada to Mountain in southern Idaho to Pacific in northern Idaho, and I believe it switches back to Mountain when it crosses the border and continues as BC 95.

[cpzilliacus]

U.S. 29 starts out in Central Time in the western part of the Florida Panhandle, then into Alabama, and then Georgia, where it stays on Eastern Time the rest of the way to Maryland.

[SteveG1988]

@Steve, you said interstates in the first post, but you said roads (taking that to mean any north-south Interstate or US Highway) in the title. So assuming US Highways might be candidates:

US 287 goes from the Central time zone into the Mountain time zone and gets decently close to the Pacific time zone.

US 11 goes from the Central time zone into the Eastern time zone.

US 127 goes from the Eastern time zone to the Central time zone (I could be pretty certain it passes through it) and back into the Eastern time zone again. US 27 is pretty close to entering the Central time zone for a good bit of its route, but I could be pretty sure it never actually enters it.

Here's a very interesting one: US 41 goes from the Eastern time zone into the Central into the Eastern again then into the Central again then into the Eastern time zone again 

As for interstates:

Once/if I-69 is ever completed, it'll pass through both the Central & Eastern time zones.

I-59 goes through the Central time zone and just barely enters the Eastern time zone before ending on I-24 in Georgia.

Yeah i said interstates in the end without thinking about it, i meant long distance roads in general.

US31, Central/Eastern

[lordsutch]

Once/if I-69 is ever completed, it'll pass through both the Central & Eastern time zones.

Already does: Evansville is in the Central Time Zone.

[SteveG1988]

Once/if I-69 is ever completed, it'll pass through both the Central & Eastern time zones.

Already does: Evansville is in the Central Time Zone.

But for how long? Indiana is always in a state of temporal flux

[jwolfer]

Once/if I-69 is ever completed, it'll pass through both the Central & Eastern time zones.

Already does: Evansville is in the Central Time Zone.

But for how long? Indiana is always in a state of temporal flux

A rift in the space time continuum

[Thing 342]

US-93: Mountain (MT, ID) to Pacific (NV), then back to Mountain (AZ)
US-95: Pacific (Northern ID) to Mountain (Southern ID), then back to Pacific (OR, NV, CA), then back again to Mountain (AZ)

[pianocello]

For example I-65 runs mostly north/south with a little eastern to get over to Louisville OH KY and Nashville TN, but it mostly stays along a straight line, yet it crosses into and out of the central time zone, are there any other interstates that do this?

I-65 is the only north-south interstate that crosses the same time zone boundary twice. Actually, it might be the only interstate, regardless of direction, that does that.

FTFY, by the way.

[lepidopteran]

Does the north end of I-95 ever enter the Atlantic time zone?

[cl94]

Does the north end of I-95 ever enter the Atlantic time zone?

No. Ends at the Maine-New Brunswick border. NB is in Atlantic.

[dfwmapper]

I-65 is the only north-south interstate that crosses the same time zone boundary twice. Actually, it might be the only interstate, regardless of direction, that does that.

Depending on which map you believe, I-40 might as well. The Navajo Nation observes DST, while the rest of Arizona does not. Some maps show a small sliver of the nation covering the area of Navajo, AZ, with non-nation parts on both sides, and more of the nation (plus New Mexico) further east. Thus for 8 months of the year one could drive from MST to MDT to MST to MDT.

And for that matter, another one for the thread in general, AZ 87 goes from MST in the main part of AZ to MDT in the Navajo Nation back to MST in the Hopi Nation, as they do not observe DST. And AZ 264 also crosses both nations and therefore both timezones.

[DandyDan]

Then there's the part of US 83 in the Fort Pierre, SD area.  At least according to Rand McNally, going from Pierre to Fort Pierre, US 83 enters the Mountain Time Zone when it crosses the Missouri, but after it separates from US 14, and apparently before you get to Fort Pierre (or at least where the dot for Fort Pierre is), it is Central Time Zone again.

K-27, which goes north-south through the western tier of counties in Kansas, is in the CTZ for 2 counties, the MTZ for 4 counties, and then the CTZ for 1 county.  NE 27, the northward extension of K-27 in Nebraska that connects to US 34, is MTZ.

NE 97, which goes between North Platte and Valentine, begins and ends in the CTZ, but has a MTZ segment in between.

[SteveG1988]

I-65 is the only north-south interstate that crosses the same time zone boundary twice. Actually, it might be the only interstate, regardless of direction, that does that.

Depending on which map you believe, I-40 might as well. The Navajo Nation observes DST, while the rest of Arizona does not. Some maps show a small sliver of the nation covering the area of Navajo, AZ, with non-nation parts on both sides, and more of the nation (plus New Mexico) further east. Thus for 8 months of the year one could drive from MST to MDT to MST to MDT.

And for that matter, another one for the thread in general, AZ 87 goes from MST in the main part of AZ to MDT in the Navajo Nation back to MST in the Hopi Nation, as they do not observe DST. And AZ 264 also crosses both nations and therefore both timezones.

But are these roads signed N/S like I-65 is?

[jeffandnicole]

Does the north end of I-95 ever enter the Atlantic time zone?

No. Ends at the Maine-New Brunswick border. NB is in Atlantic.

Just to clarify: the Atlantic time zone never enters the continental United States, period.

[1995hoo]

Does the north end of I-95 ever enter the Atlantic time zone?

No. Ends at the Maine-New Brunswick border. NB is in Atlantic.

Just to clarify: the Atlantic time zone never enters the continental United States, period.

Correct. ROUTE 95 enters the Atlantic time zone, as the road continues as New Brunswick Route 95 for a few kilometres until it reaches the Trans-Canada Highway. But that's obviously a separate matter from INTERSTATE 95.

[dfwmapper]

I-65 is the only north-south interstate that crosses the same time zone boundary twice. Actually, it might be the only interstate, regardless of direction, that does that.

Depending on which map you believe, I-40 might as well. The Navajo Nation observes DST, while the rest of Arizona does not. Some maps show a small sliver of the nation covering the area of Navajo, AZ, with non-nation parts on both sides, and more of the nation (plus New Mexico) further east. Thus for 8 months of the year one could drive from MST to MDT to MST to MDT.

And for that matter, another one for the thread in general, AZ 87 goes from MST in the main part of AZ to MDT in the Navajo Nation back to MST in the Hopi Nation, as they do not observe DST. And AZ 264 also crosses both nations and therefore both timezones.

But are these roads signed N/S like I-65 is?

AZ 87 is signed N/S. I-40 is E/W of course, but it fits the "regardless of direction" criteria.

[sbeaver44]

Once/if I-69 is ever completed, it'll pass through both the Central & Eastern time zones.

Already does: Evansville is in the Central Time Zone.

But for how long? Indiana is always in a state of temporal flux

So much so it gets its own Wikipedia article.  http://en.wikipedia.org/wiki/Time_in_Indiana

[agentsteel53]

Does the north end of I-95 ever enter the Atlantic time zone?

I don't believe any part of the US is in Atlantic time zone.  am I misremembering?

[jeffandnicole]

See above.  It does not.