9:20 - mash started(added water additions before grain) 12:00 - boil started 1:20 - split wort into 3 fermenters
Based on boiling 13.00 gallonsliters at 1.054 for 60 minutes, this will decrease your wort by 1.75 gallonsliters, bringing your after boil OG to 1.061. You wanted an OG of 1.056. It looks like it will be over.