diff --git a/tests/intl/intltest.cpp b/tests/intl/intltest.cpp
index 57cfb44096..a7e90e71bb 100644
--- a/tests/intl/intltest.cpp
+++ b/tests/intl/intltest.cpp
@@ -180,7 +180,7 @@ void IntlTestCase::DateTimeFmtFrench()
     static const char *FRENCH_DATE_FMT = "%d.%m.%Y";
 #endif
     static const char *FRENCH_LONG_DATE_FMT = "%a %d %b %Y";
-    static const char *FRENCH_DATE_TIME_FMT = "%a %d %b %Y %H:%M:%S %Z";
+    static const char *FRENCH_DATE_TIME_FMT = "%a %d %b %Y %H:%M:%S";
 #else
     static const char *FRENCH_DATE_FMT = "%d/%m/%Y";
     static const char *FRENCH_LONG_DATE_FMT = "%A %d %B %Y";
@@ -192,15 +192,24 @@ void IntlTestCase::DateTimeFmtFrench()
     WX_ASSERT_EQUAL_FORMAT( "French long date", FRENCH_LONG_DATE_FMT,
                             wxLocale::GetInfo(wxLOCALE_LONG_DATE_FMT) );
 
-    const wxString fmtDT = wxLocale::GetInfo(wxLOCALE_DATE_TIME_FMT);
+    wxString fmtDT = wxLocale::GetInfo(wxLOCALE_DATE_TIME_FMT);
+    INFO("French date and time format is \"" << fmtDT << "\"");
+
 #ifdef __WXOSX__
     // Things are difficult to test under macOS as the format keeps changing,
     // e.g. at some time between 10.10 and 10.12 a new " à " string appeared in
     // its middle, so test it piece-wise and hope it doesn't change too much.
-    INFO("French date and time format is \"" << fmtDT << "\"");
     CHECK( fmtDT.StartsWith("%A %d %B %Y") );
     CHECK( fmtDT.EndsWith("%H:%M:%S") );
 #else
+    // Some glic versions have " %Z" at the end of the locale and some don't.
+    // The test is still useful if we just ignore this difference.
+    #ifdef __GLIBC__
+        wxString fmtDTWithoutTZ;
+        if ( fmtDT.EndsWith(" %Z", &fmtDTWithoutTZ) )
+            fmtDT.swap(fmtDTWithoutTZ);
+    #endif
+
     WX_ASSERT_EQUAL_FORMAT( "French date and time", FRENCH_DATE_TIME_FMT, fmtDT );
 #endif
     WX_ASSERT_EQUAL_FORMAT( "French time", "%H:%M:%S",