SECS_PER_HOUR    1146 third_party/libxml/src/xmlschemastypes.c #define SECS_PER_HOUR           (60 * SECS_PER_MIN)
SECS_PER_HOUR     178 third_party/libxslt/libexslt/date.c #define SECS_PER_HOUR           (60 * SECS_PER_MIN)