VALID_TZO        1118 third_party/libxml/src/xmlschemastypes.c #define VALID_TZO(tzo)          ((tzo > -840) && (tzo < 840))
VALID_TZO         146 third_party/libxslt/libexslt/date.c #define VALID_TZO(tzo)          ((tzo > -1440) && (tzo < 1440))