// $record_id - optional record id we may be editing, excluded from overlap set
static function overlaps($user_id, $date, $start, $finish, $record_id = null) {
// Do not bother checking if we allow overlaps.
// $record_id - optional record id we may be editing, excluded from overlap set
static function overlaps($user_id, $date, $start, $finish, $record_id = null) {
// Do not bother checking if we allow overlaps.