Use DateTimeUtils.EPOCH_DATE_VALUE in Value.convertTo()

h2/src/main/org/h2/util/DateTimeUtils.java

@@ -58,7 +58,7 @@ public class DateTimeUtils {
     /**
      * Date value for 1970-01-01.
      */
-    private static final int EPOCH_DATE_VALUE = (1970 << SHIFT_YEAR) + (1 << SHIFT_MONTH) + 1;
+    public static final int EPOCH_DATE_VALUE = (1970 << SHIFT_YEAR) + (1 << SHIFT_MONTH) + 1;
 
     private static final int[] NORMAL_DAYS_PER_MONTH = { 0, 31, 28, 31, 30, 31,
             30, 31, 31, 30, 31, 30, 31 };

h2/src/main/org/h2/value/Value.java

@@ -845,8 +845,7 @@ public abstract class Value {
                 case TIME:
                     // because the time has set the date to 1970-01-01,
                     // this will be the result
-                    return ValueDate.fromDateValue(
-                            DateTimeUtils.dateValue(1970, 1, 1));
+                    return ValueDate.fromDateValue(DateTimeUtils.EPOCH_DATE_VALUE);
                 case TIMESTAMP:
                     return ValueDate.fromDateValue(
                             ((ValueTimestamp) this).getDateValue());