Fix timestamp parsing defect #135 (#167)

connection.go

@@ -512,13 +512,23 @@ func (v *connection) initializeSession() error {
 		return fmt.Errorf("can't get server timezone: %s", str)
 	}
 
-	v.serverTZOffset = str[len(str)-3:]
+	v.serverTZOffset = getTimeZoneOffset(str)
 
-	connectionLogger.Debug("Setting server timezone offset to %s", str[len(str)-3:])
+	connectionLogger.Debug("Setting server timezone offset to %s", v.serverTZOffset)
 
 	return nil
 }
 
+func getTimeZoneOffset(str string) string {
+	for i := len(str) - 1; i >= 0 && i >= len(str)-8; i-- {
+		ch := str[i]
+		if ch == '+' || ch == '-' {
+			return str[i:]
+		}
+	}
+	return "+00"
+}
+
 func (v *connection) defaultMessageHandler(bMsg msgs.BackEndMsg) (bool, error) {
 
 	handled := true