diff --git a/ConfigureChecks.cmake b/ConfigureChecks.cmake
index 58f3e5f6dd..1b8d28a695 100644
--- a/ConfigureChecks.cmake
+++ b/ConfigureChecks.cmake
@@ -80,19 +80,7 @@ elseif(CMAKE_SYSTEM_NAME STREQUAL "SunOS" AND CMAKE_SYSTEM_VERSION MATCHES "5[.]
 	check_function_exists("getexecname"     HAVE_GETEXECNAME)
 endif()
 
-#
-# Check whether we have clock_gettime().
-# It's not on Windows, so don't waste time checking for it.
-# It's in newer POSIX, so some, but not all, UN*Xes have it.
-#
-if (NOT WIN32)
-	#
-	# POSIX - don't bother checking on Windows, as checks
-	# take time.
-	#
-	check_function_exists("clock_gettime"    HAVE_CLOCK_GETTIME)
-endif (NOT WIN32)
-
+check_function_exists("clock_gettime"    HAVE_CLOCK_GETTIME)
 check_function_exists("getifaddrs"       HAVE_GETIFADDRS)
 check_function_exists("issetugid"        HAVE_ISSETUGID)
 check_function_exists("setresgid"        HAVE_SETRESGID)
diff --git a/ui/qt/import_text_dialog.cpp b/ui/qt/import_text_dialog.cpp
index e5b821a9cf..2e4b914e9c 100644
--- a/ui/qt/import_text_dialog.cpp
+++ b/ui/qt/import_text_dialog.cpp
@@ -618,15 +618,15 @@ void ImportTextDialog::on_timestampFormatLineEdit_textChanged(const QString &tim
             char time_str[100];
             QString timefmt = QString(time_format);
 
-#if defined(_WIN32)
+#if defined(HAVE_CLOCK_GETTIME)
+            // Newer POSIX API.  Some UN*Xes whose C libraries lack
+            // timespec_get() (C11) have this.
+            clock_gettime(CLOCK_REALTIME, &timenow);
+#elif defined(_WIN32)
             // At least some Windows C libraries have this.
             // Some UN*X C libraries do, as well, but they might not
             // show it unless you're requesting C11 - or C++17.
             timespec_get(&timenow, TIME_UTC);
-#elif defined(HAVE_CLOCK_GETTIME)
-            // Newer POSIX API.  Some UN*Xes whose C libraries lack
-            // timespec_get() (C11) have this.
-            clock_gettime(CLOCK_REALTIME, &timenow);
 #else
             // Fall back on gettimeofday().
             struct timeval usectimenow;