Temporal scope of Interest-tax Act extended by adding post-March 31, 1985 periods to section 6(2). Amendment inserts the words, figures and letters 'or after the 31st day of March, 1985' after the phrase 'ending with the 30th day of June, 1980' in sub section (2) of section 6 of the Interest tax Act, thereby modifying the statutory timeframe that governs the temporal application of that provision.