diff --git a/pkg/utils/date.go b/pkg/utils/date.go
index de5566e4d..511cf8a4f 100644
--- a/pkg/utils/date.go
+++ b/pkg/utils/date.go
@@ -23,5 +23,17 @@ func ParseDateStringAsTime(dateString string) (time.Time, error) {
 		return t, nil
 	}
 
+	// Support partial dates: year-month format
+	t, e = time.Parse("2006-01", dateString)
+	if e == nil {
+		return t, nil
+	}
+
+	// Support partial dates: year only format
+	t, e = time.Parse("2006", dateString)
+	if e == nil {
+		return t, nil
+	}
+
 	return time.Time{}, fmt.Errorf("ParseDateStringAsTime failed: dateString <%s>", dateString)
 }
diff --git a/pkg/utils/date_test.go b/pkg/utils/date_test.go
new file mode 100644
index 000000000..f3622ca40
--- /dev/null
+++ b/pkg/utils/date_test.go
@@ -0,0 +1,80 @@
+package utils
+
+import (
+	"testing"
+	"time"
+)
+
+func TestParseDateStringAsTime(t *testing.T) {
+	tests := []struct {
+		name        string
+		input       string
+		expectError bool
+	}{
+		// Full date formats (existing support)
+		{"RFC3339", "2014-01-02T15:04:05Z", false},
+		{"Date only", "2014-01-02", false},
+		{"Date with time", "2014-01-02 15:04:05", false},
+
+		// Partial date formats (new support)
+		{"Year-Month", "2006-08", false},
+		{"Year only", "2014", false},
+
+		// Invalid formats
+		{"Invalid format", "not-a-date", true},
+		{"Empty string", "", true},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result, err := ParseDateStringAsTime(tt.input)
+
+			if tt.expectError {
+				if err == nil {
+					t.Errorf("Expected error for input %q, but got none", tt.input)
+				}
+			} else {
+				if err != nil {
+					t.Errorf("Unexpected error for input %q: %v", tt.input, err)
+				}
+				if result.IsZero() {
+					t.Errorf("Expected non-zero time for input %q", tt.input)
+				}
+			}
+		})
+	}
+}
+
+func TestParseDateStringAsTime_YearOnly(t *testing.T) {
+	result, err := ParseDateStringAsTime("2014")
+	if err != nil {
+		t.Fatalf("Failed to parse year-only date: %v", err)
+	}
+
+	if result.Year() != 2014 {
+		t.Errorf("Expected year 2014, got %d", result.Year())
+	}
+	if result.Month() != time.January {
+		t.Errorf("Expected month January, got %s", result.Month())
+	}
+	if result.Day() != 1 {
+		t.Errorf("Expected day 1, got %d", result.Day())
+	}
+}
+
+func TestParseDateStringAsTime_YearMonth(t *testing.T) {
+	result, err := ParseDateStringAsTime("2006-08")
+	if err != nil {
+		t.Fatalf("Failed to parse year-month date: %v", err)
+	}
+
+	if result.Year() != 2006 {
+		t.Errorf("Expected year 2006, got %d", result.Year())
+	}
+	if result.Month() != time.August {
+		t.Errorf("Expected month August, got %s", result.Month())
+	}
+	if result.Day() != 1 {
+		t.Errorf("Expected day 1, got %d", result.Day())
+	}
+}