diff --git a/be/src/runtime/datetime_value.cpp b/be/src/runtime/datetime_value.cpp
index b440e205c6eaba..49b84b32c782d8 100644
--- a/be/src/runtime/datetime_value.cpp
+++ b/be/src/runtime/datetime_value.cpp
@@ -1440,7 +1440,7 @@ bool DateTimeValue::from_date_format_str(const char* format, int format_len, con
             (!strict_week_number && strict_week_number_year >= 0)) {
             return false;
         }
-        uint64_t days = calc_daynr(strict_week_number ? strict_week_number_year : _year, 1, 1);
+        uint64_t days = calc_daynr(strict_week_number ? strict_week_number_year : year, 1, 1);
 
         uint8_t weekday_b = calc_weekday(days, sunday_first);
 
diff --git a/be/test/runtime/datetime_value_test.cpp b/be/test/runtime/datetime_value_test.cpp
index edf22fa1097a1b..da0053ab189e02 100644
--- a/be/test/runtime/datetime_value_test.cpp
+++ b/be/test/runtime/datetime_value_test.cpp
@@ -530,6 +530,14 @@ TEST_F(DateTimeValueTest, from_date_format_str) {
     value.to_string(str);
     ASSERT_STREQ("2015-01-05 12:34:56", str);
 
+    // %T
+    format_str = "%W %U %Y";
+    value_str = "Tuesday 00 2002";
+    ASSERT_TRUE(value.from_date_format_str(format_str.c_str(), format_str.size(), value_str.c_str(),
+                                           value_str.size()));
+    value.to_string(str);
+    ASSERT_STREQ("2002-01-01", str);
+
     // hour
     format_str = "%Y-%m-%d %H %i %s";
     value_str = "88-2-1 03 4 5";