The github for bitcoin private which you get directed to from bitcoinprivate.org or bitcoinprivate.com says "Harfork is planned to happen on block 550000" given we are at block 502543 (at the time of writing) and we have 10 minute blocks that is 329 days.  I assume this is a typo if it is to happen this January as block 505000 will make it about 17 days ... much sooner!!!