A bug introduced by commit 6c2406ac861f42536acb76606c90412324a0e733 (http://lists.busybox.net/pipermail/busybox-cvs/2010-June/031293.html), which caused "date" to get invalid date time, if FEATURE_DATE_NANO not set.

A resolved patch as following:

diff --git a/coreutils/date.c b/coreutils/date.c
index c3478fa..8f9aff8 100644
--- a/coreutils/date.c
+++ b/coreutils/date.c
@@ -210,7 +210,7 @@ int date_main(int argc UNUSED_PARAM, char **argv)
 #if ENABLE_FEATURE_DATE_NANO
                clock_gettime(CLOCK_REALTIME, &ts);
 #else
-               time(&ts.tv_nsec);
+               time(&ts.tv_sec);
 #endif
        }
        localtime_r(&ts.tv_sec, &tm_time);