precision/calculate
truncateNanoseconds: Truncate nanoseconds since the Unix epoch to the precision a store can actually hold.
NanosecondTruncationUnit: Storage precision a nanosecond value can be truncated to.
truncateNanoseconds: Truncate nanoseconds since the Unix epoch to the precision a store can actually hold.NanosecondTruncationUnit: Storage precision a nanosecond value can be truncated to.