private List<DateTimeTokenizer.Token> tokenize() {
        List<DateTimeTokenizer.Token> tokens = new ArrayList<>();

        DateTimeTokenizer.Token t;
        while ((t = tokenizer.next()) != EOF) tokens.add(t);
        return tokens;
    }
The base time for relative statements.
exts/jphp-zend-ext/src/main/java/org/develnext/jphp/zend/ext/standard/date/DateTimeParser.java