I don't know how the burial record can be so wrong.
Goulburn Evening Penny Post (NSW : 1881 - 1940) - Saturday 21 January 1922 p.4
OBITUARY.
MR. J. W. A. SANDS.
Mr John William Anderson Sands, eldest son of Mr. Wm. Sands, of Goulburn, died at two o'clock on Thursday afternoon at St. Ronan's Hospital, Manly, after an illness lasting for some months. He was 53 years of age ... The funeral took place at Goulburn on Friday afternoon.
So he died on the 19th at Manly and was buried on the 20th at Goulburn.