lib/nghttp2_time.c | 40 ++++++++++------------------------------
 1 file changed, 10 insertions(+), 30 deletions(-)

diff --git a/lib/nghttp2_time.c b/lib/nghttp2_time.c
index 947b544..db18869 100644
--- a/lib/nghttp2_time.c
+++ b/lib/nghttp2_time.c
@@ -28,36 +28,16 @@
 #  include <windows.h>
 #endif /* HAVE_WINDOWS_H */
 
-#include <time.h>
-
-#if !defined(HAVE_GETTICKCOUNT64) || defined(__CYGWIN__)
-static uint64_t time_now_sec(void) {
-  time_t t = time(NULL);
-
-  if (t == -1) {
-    return 0;
-  }
-
-  return (uint64_t)t;
+typedef union
+{
+  unsigned __int64 scalar;
+  FILETIME ft_struct;
 }
-#endif /* !HAVE_GETTICKCOUNT64 || __CYGWIN__ */
-
-#if defined(HAVE_GETTICKCOUNT64) && !defined(__CYGWIN__)
-uint64_t nghttp2_time_now_sec(void) { return GetTickCount64() / 1000; }
-#elif defined(HAVE_CLOCK_GETTIME) && defined(HAVE_DECL_CLOCK_MONOTONIC) &&     \
-    HAVE_DECL_CLOCK_MONOTONIC
-uint64_t nghttp2_time_now_sec(void) {
-  struct timespec tp;
-  int rv = clock_gettime(CLOCK_MONOTONIC, &tp);
-
-  if (rv == -1) {
-    return time_now_sec();
-  }
+ftime_t;
 
-  return (uint64_t)tp.tv_sec;
+uint64_t nghttp2_time_now_sec(void)
+{
+  ftime_t ftime;
+  GetSystemTimeAsFileTime(&(ftime.ft_struct));
+  return ftime.scalar / 10000000ULL;
 }
-#else  /* (!HAVE_CLOCK_GETTIME || !HAVE_DECL_CLOCK_MONOTONIC) &&               \
-          (!HAVE_GETTICKCOUNT64 || __CYGWIN__)) */
-uint64_t nghttp2_time_now_sec(void) { return time_now_sec(); }
-#endif /* (!HAVE_CLOCK_GETTIME || !HAVE_DECL_CLOCK_MONOTONIC) &&               \
-         (!HAVE_GETTICKCOUNT64 || __CYGWIN__)) */