diff --git a/include/spdlog/sinks/file_sinks.h b/include/spdlog/sinks/file_sinks.h
index 136f63e2..55d9afd9 100644
--- a/include/spdlog/sinks/file_sinks.h
+++ b/include/spdlog/sinks/file_sinks.h
@@ -196,7 +196,7 @@ private:
     {
         std::tm tm = spdlog::details::os::localtime();
         fmt::MemoryWriter w;
-        w.write("{}_{:04d}-{:02d}-{:02d}_{:02d}-{:02d}.{}", basename, tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, tm.tm_min, extension);
+        w.write("{}_{:04d}-{:02d}-{:02d}.{}", basename, tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, extension);
         return w.str();
     }
 
diff --git a/tests/file_log.cpp b/tests/file_log.cpp
index 2abd0214..769ff270 100644
--- a/tests/file_log.cpp
+++ b/tests/file_log.cpp
@@ -66,7 +66,7 @@ TEST_CASE("daily_logger", "[daily_logger]]")
     std::string basename = "logs/daily_log";
     std::tm tm = spdlog::details::os::localtime();
     fmt::MemoryWriter w;
-    w.write("{}_{:04d}-{:02d}-{:02d}_{:02d}-{:02d}.txt", basename, tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, tm.tm_min);
+    w.write("{}_{:04d}-{:02d}-{:02d}.txt", basename, tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday);
 
     auto logger = spdlog::daily_logger_mt("logger", basename, 0, 0, true);
     for (int i = 0; i < 10; ++i)