doc: date_time is in milliseconds, not seconds.
doc: date_time is in milliseconds, not seconds.

ksuarz/libbson,ksuarz/libbson,Convey-Compliance/libbson,mongodbinc-interns/libbson,alexeyvo/libbson,mongodb/libbson,Machyne/libbson,bjori/libbson,rcsanchez97/libbson,ksuarz/libbson,paulmelnikow/libbson,mongodbinc-interns/libbson,derickr/libbson,ajdavis/libbson,rayyang2000/libbson,rayyang2000/libbson,derickr/libbson,mongodb/libbson,paulmelnikow/libbson,Convey-Compliance/libbson,paulmelnikow/libbson,ajdavis/libbson,rcsanchez97/libbson,4Second2None/libbson_tmp,4Second2None/libbson_tmp,rayyang2000/libbson,remicollet/libbson,rcsanchez97/libbson,jqk6/libbson,4Second2None/libbson_tmp,Machyne/libbson,mongodbinc-interns/libbson,mongodb/libbson,bjori/libbson,paulmelnikow/libbson,jqk6/libbson,4Second2None/libbson_tmp,Convey-Compliance/libbson,ajdavis/libbson,mapr/libbson,jqk6/libbson,Machyne/libbson,mapr/libbson,derickr/libbson,alexeyvo/libbson,rayyang2000/libbson,remicollet/libbson,paulmelnikow/libbson,mapr/libbson,remicollet/libbson,derickr/libbson,Machyne/libbson,bjori/libbson,mongodbinc-interns/libbson,jqk6/libbson,alexeyvo/libbson,remicollet/libbson