When referring to the present, the Book of Mormon text has 61 occurrences of “this time” but never “these times”. When referring to nonpresent time, we have “times of old” (five times) or “times to come” (only once, in this passage). There is one past-time occurrence that has the singular: “in a time of old” (Ether 13:5). In any event, the present is always viewed in the Book of Mormon as a single point in time, whereas the past and future are usually considered as a sequence of points in time. Here in 1 Nephi 10:19, the plural reference to present time was introduced by the 1830 typesetter and was undoubtedly due to the plural usage for past and future time found in this passage. The RLDS text restored the singular “this time” in the 1908 edition since that edition restored many readings found in the printer’s manuscript.
Summary: Restore the singular “this time” in 1 Nephi 10:19; the text consistently uses the singular “this time” (rather than “these times”) to refer to present time.