2008 Titan pickup alarm light on panel - what is it?

[michaelcbaucom]

A light on the dash board comes on intermittantly. It is a clock face with the hands fixed at the 3 o'clock position. There are arcs above the clock face like it is alarming. To the right of the clock face there is a number that is counting up. When the alarm light comes on the number to the right is .5 hrs. and it is counting up like .6 , .7 ect. What is this alarm?