What's this warning light mean?

The subject: 2009 Nissan Altima, just shy of 100k (like another tank of gas will roll it over). 

The driver and scenario: girlfriend's 21yo daughter, on the freeway, so she couldn't take a picture. It popped up only then, hasn't come on since. 

A drawing of the warning:

I've searched Google, to no avail. Girlfriend read through owner's manual (it used to be her car), and couldn't find anything. Any idea WTBerk it means? 

User-settable driving time warning alarm. Seriously. Search this page for "clock:"

http://www.glendalenissan.com/blog/nissan-altima-dashboard-warning-lights-and-meanings/

In reply to GameboyRMH :

Ding ding! That makes perfect sense. She was driving from Chicago to Milwaukee, in heavy traffic; just over two hours...

Thank you! 

We need this in our ChumpCar.

Chump car version:

Good awareness of the daughter to see a warning light and wonder about it even after it went away!

100k miles on the car and just now has it been driven more than 2 consecutive hours?

T.J. said:

100k miles on the car and just now has it been driven more than 2 consecutive hours?

My guess is that it was accidentally set at the last time change. 

mtn said:

T.J. said:

100k miles on the car and just now has it been driven more than 2 consecutive hours?

My guess is that it was accidentally set at the last time change. 

That's possible, as she's made the Chicago /Milwaukee run a few times.

In reply to GameboyRMH :

I clicked that link to look at the warning lights and a chat box opened with Maryann.  Cool, I'll talk to Maryann, she's hot.  I write "HI", and then John comes on.  JOHN!  I want to talk to Maryann.  durn.

The clock's Spidey-Sense is tingling.

RealMiniNoMore said:

mtn said:

T.J. said:

100k miles on the car and just now has it been driven more than 2 consecutive hours?

My guess is that it was accidentally set at the last time change. 

That's possible, as she's made the Chicago /Milwaukee run a few times.

And a Chicago/Milwaukee run can vary from less than an hour to over three depending on time of day, where within each, if we're talking about suburbs, construction, traffic, etc... We just did Chicago to Milwaukee in just over 1 hour last night. But we were coming from a suburb oustside of Chicago (farther distance traveled, but faster) and were only on the 94/43 while we were in Milwaukee.