diff --git a/dlls/ntdll/time.c b/dlls/ntdll/time.c
index 08e09b00d9..256be426ea 100644
--- a/dlls/ntdll/time.c
+++ b/dlls/ntdll/time.c
@@ -277,7 +277,10 @@ static const struct tagTZ_INFO TZ_INFO[] =
      'r','d',' ','T','i','m','e','\0'}, -270, 0},
    {"SAMT",
     {'S','a','m','a','r','a',' ','S','t','a','n','d','a','r','d',' ','T','i',
-     'm','e','\0'}, -270, 1},
+     'm','e','(','W','i','n','t','e','r',')','\0'}, -240, 0},
+   {"SAMST",
+    {'S','a','m','a','r','a',' ','D','a','y','l','i','g','h','t',' ','T','i',
+     'm','e','(','S','u','m','m','e','r',')','\0'}, -300, 1},
    {"YEKT",
     {'U','r','a','l','s',' ','S','t','a','n','d','a','r','d',
      ' ','T','i','m','e',' ','(','W','i','n','t','e','r',')','\0'}, -300, 0},