diff --git a/repertory/librepertory/src/providers/s3/s3_provider.cpp b/repertory/librepertory/src/providers/s3/s3_provider.cpp
index c1d5aade..18c4b4c8 100644
--- a/repertory/librepertory/src/providers/s3/s3_provider.cpp
+++ b/repertory/librepertory/src/providers/s3/s3_provider.cpp
@@ -76,7 +76,7 @@ auto s3_provider::convert_api_date(std::string_view date) -> std::uint64_t {
   return nanos + utils::time::windows_time_t_to_unix_time(_mkgmtime(&tm1));
 #else  // !defined(_WIN32)
   strptime(date_time.c_str(), "%Y-%m-%dT%T", &tm1);
-  return nanos + (static_cast<std::uint64_t>(mktime(&tm1)) *
+  return nanos + (static_cast<std::uint64_t>(timegm(&tm1)) *
                   utils::time::NANOS_PER_SECOND);
 #endif // defined(_WIN32)
 }