diff --git a/compat/mingw-posix.h b/compat/mingw-posix.h
index 9158f89d89d239..15c4f741338f37 100644
--- a/compat/mingw-posix.h
+++ b/compat/mingw-posix.h
@@ -411,9 +411,11 @@ extern int (*lstat)(const char *file_name, struct stat *buf);
 
 int mingw_utime(const char *file_name, const struct utimbuf *times);
 #define utime mingw_utime
+#ifndef _UCRT
 size_t mingw_strftime(char *s, size_t max,
 		   const char *format, const struct tm *tm);
 #define strftime mingw_strftime
+#endif
 
 pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
 		     const char *dir,
diff --git a/compat/mingw.c b/compat/mingw.c
index 5a9807e7a42b41..3b6732cea93a36 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -1505,6 +1505,7 @@ int mingw_utime (const char *file_name, const struct utimbuf *times)
 	return rc;
 }
 
+#ifndef _UCRT
 #undef strftime
 size_t mingw_strftime(char *s, size_t max,
 		      const char *format, const struct tm *tm)
@@ -1524,6 +1525,7 @@ size_t mingw_strftime(char *s, size_t max,
 		die("invalid strftime format: '%s'", format);
 	return ret;
 }
+#endif
 
 unsigned int sleep (unsigned int seconds)
 {