According to WCSH 6, this Friday's full moon is a very rare occurrence.

For the first time in about 20 years, we'll be getting a full moon on a Friday the 13th.

The last time this happened was August 13th, 2000.  It won't happen again until August 13th, 2049.

By the way, the specific time the moon becomes "full" is 12:33 AM on Saturday morning.