PrayerTimes | Desktop application : computer : for calculating Muslim

I believe the example below does what you need, it runs a function every 3 seconds to check whether the cells with the class .time are in the past or not.

Make sure you change the setInterval timer to something more sensible, it sounds like you wouldn't need to run it every seconds but perhaps every minute would provide more than enough sensitivity?

The highlighting is then all done using CSS, namely the classes .past and .future. The next session is highlighted using the + selector, which finds the first incidence of a class that immediately follows the preceding class, i.e. .past + .future applies styles to the first element with a class .future that is a sibling and immediately following an element with class .past.

Styles are applied to the parent tr using the jquery selector .closest("tr").