Triggering animations help required please!!!

Hi, please bear with me as i’m a complete novice and looking at unity as a bit of a hobbyist so apologies in advance for the stupid questions that will undoubtedly follow!

I have a cube that when triggered changes colour from white to a pulsing yellow. Now i can set this up and play the animation manually, the problem is i want the trigger to be a time and/or date rather than something like a collider trigger for instance.

Any help much appreciated.

Cheers

Craig

BUMP

Really stuck at the minute, any advice would be much appreciated.
Thanks