The Day Time Ended
sounds like it could be the one from what I read on IMDB. Vortex does tug at my memory a bit. Hmmm, wonder if I can find it online somewhere.
. Definitely not it. Tried to watch that movie several times and even with Frank "Herb Tarlek" Bonner in the cast I have never made it through more than 20 minutes. Come to think of it, Equinox
may be the master mold for all of SyFy's terrible monster movies. Take a small cast and crew into the woods, give them a couple props, then let them run around scared for 2 hours while filming.