Fix parsing of negative TIME values with 0 hours

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

@@ -403,8 +403,11 @@ public class DateTimeUtils {
         }
         boolean negative;
         hour = Integer.parseInt(s.substring(start, s1));
-        if (hour < 0) {
+        if (hour < 0 || hour == 0 && s.charAt(0) == '-') {
             if (timeOfDay) {
+                /*
+                 * This also forbids -00:00:00 and similar values.
+                 */
                 throw new IllegalArgumentException(s);
             }
             negative = true;

h2/src/test/org/h2/test/unit/TestDate.java

@@ -117,6 +117,7 @@ public class TestDate extends TestBase {
         assertEquals("00:00:00", ValueTime.fromNanos(0).getString());
         assertEquals("23:59:59", ValueTime.parse("23:59:59").getString());
         assertEquals("99:59:59", ValueTime.parse("99:59:59").getString());
+        assertEquals("-00:10:10", ValueTime.parse("-00:10:10").getString());
         assertEquals("-99:02:03.001002003",
                 ValueTime.parse("-99:02:03.001002003").getString());
         assertEquals("-99:02:03.001002",