i. the first day, in this section referred to as the “disposition day”, that ends at or after the particular time that would, but for subparagraphs a.2 and a.3 of the first paragraph of section 653, be determined in respect of the transferee trust is deemed to be the earliest of(1) the first day ending at or after the particular time that would be determined in respect of the transferor trust under section 653 without regard to the transfer and any transaction or event occurring after the particular time,
(2) the first day ending at or after the particular time that would otherwise be determined in respect of the transferee trust under section 653 without regard to any transaction or event occurring after the particular time,
(3) where the transferor trust is a joint spousal trust, a post-1971 spousal trust or a pre-1972 spousal trust and the spouse referred to in subparagraph a of the first paragraph of section 653 or in the definition of “pre-1972 spousal trust” in section 652.1, is alive at the particular time, the first day that ends at or after the particular time,
(3.1) where the transferor trust is an alter ego trust, a trust to which subparagraph a.4 of the first paragraph of section 653 applies or a joint spousal trust, and the taxpayer referred to in subparagraph a or a.4 of that first paragraph, as the case may be, is alive at the particular time, the first day that ends at or after the particular time, and
(4) where the disposition day would, but for the application of this section to the transfer, be determined in respect of the transferee trust under paragraph a of section 656.4, and the particular time is after the day that would, but for section 656.4, be determined in respect of the transferee trust under subparagraph b of the first paragraph of section 653, the first day ending at or after the particular time, and