diff --git a/www/wt/files/patch-src_web_FileUtils.C b/www/wt/files/patch-src_web_FileUtils.C
new file mode 100644
index 000000000000..e8e9fda11bec
--- /dev/null
+++ b/www/wt/files/patch-src_web_FileUtils.C
@@ -0,0 +1,11 @@
+--- src/web/FileUtils.C.orig	2025-12-02 04:12:42 UTC
++++ src/web/FileUtils.C
+@@ -72,7 +72,7 @@ namespace Wt {
+   #ifndef WT_FILESYSTEM_IMPL_STD_CLOCK_17
+       auto ftime = Wt::cpp17::filesystem::last_write_time(file);
+       auto systime = decltype(ftime)::clock::to_sys(ftime);
+-      return std::chrono::system_clock::from_time_t(decltype(systime)::clock::to_time_t(systime));
++      return std::chrono::system_clock::time_point(std::chrono::duration_cast<std::chrono::system_clock::duration>(systime.time_since_epoch()));
+   #else // WT_FILESYSTEM_IMPL_STD_CLOCK_17
+       LOG_DEBUG("When using cpp17 or lower with std::filesystem, the result of this function is an approximation. Use boost::filesystem, instead of std::filesystem (see WT_CPP17_FILESYSTEM_IMPLEMENTATION) if this is a problem for your application.");
+       auto ftime = Wt::cpp17::filesystem::last_write_time(file);