Not exactly. Reference to Chrono Trigger. 1999 A.D. is when Lavos essentially destroys the world and makes it into an apocalyptic state. Now that I am explaining it, it sounds pretty morbid.
Hey Wasabi, no offense... But to be honest I wasn't expecting you to take any interest at all in "Mobius Adventures", since I know you don't like Sonic recolours and stuff. I will admit though, there sure are a LOT of recolours out there!
I'm afraid the info you've got is a bit wrong Wasabi. The Smoke Progg can be fought on any day on or before Day 15 and can only be fought once. To fight it again you need to re-do the day without saving. You can look it up on Pikipedia.