diff --git a/omaha/base/time.cc b/omaha/base/time.cc
index b9b7b4138..62a4f5ad8 100644
--- a/omaha/base/time.cc
+++ b/omaha/base/time.cc
@@ -300,7 +300,7 @@ time_t FileTimeToTimeT(const FILETIME& file_time) {
 void TimeTToFileTime(const time_t& time, FILETIME* file_time) {
   ASSERT1(file_time);
 
-  LONGLONG ll = Int32x32To64(time, kSecsTo100ns) + kTimeTConvValue;
+  LONGLONG ll = (static_cast<LONGLONG>(time) * kSecsTo100ns) + kTimeTConvValue;
   file_time->dwLowDateTime = static_cast<DWORD>(ll);
   file_time->dwHighDateTime = static_cast<DWORD>(ll >> 32);
 }