- From when Joseph first saw the plates it was 5 years 9 months.
- From when Joseph first physically visited the plates it's 4 years 9 months or
- When he took possession of the plates it's 1 year 9 months.
- When he first translated from the plates (HC 1:19) it's 1 year 7 months.
- When he started translation with Martin Harris it's 1 year 2 months.
To say it was done in just 60 days is just dishonest. The sixty day number is thrown out implying writing the book is a impossible task in that time frame for a uneducated farm boy. The test implies that there are actual plates and not an author and writing can't begin with out "the plates".
However a critic doesn't need to assume there are angels, plates and magic rocks. Just some method of composition. The dates from when the author speaks about the existence of the book until it's published are all withing the potential authorship timeline.
Phaedrus