diff --git a/libc/include/time.h b/libc/include/time.h
index 35c2358..fa1da48 100644
--- a/libc/include/time.h
+++ b/libc/include/time.h
@@ -79,9 +79,28 @@
 extern char*       strptime(const char *buf, const char *fmt, struct tm *tm);
 extern size_t      strftime(char *s, size_t max, const char *format, const struct tm *tm);
 
+/* ANDROID-BEGIN */
+struct strftime_locale {
+    const char *  mon[12];
+    const char *  month[12];
+    const char *  wday[7];
+    const char *  weekday[7];
+    const char *  X_fmt;
+    const char *  x_fmt;
+    const char *  c_fmt;
+    const char *  am;
+    const char *  pm;
+    const char *  date_fmt;
+};
+
+extern size_t      strftime_tz(char *s, size_t max, const char *format, const struct tm *tm, const struct strftime_locale*  lc);
+/* ANDROID-END */
+
 extern char *ctime(const time_t *timep);
 extern char *ctime_r(const time_t *timep, char *buf);
 
+extern void  tzset(void);
+
 /* global includes */
 extern char*     tzname[];
 extern int       daylight;