Cal. Unemp. Ins. Code § 1265.6
Notwithstanding any other provision of this division, payments to an individual for holiday pay for any holiday occurring in a week during which the individual was unemployed shall be deemed wages received for the week in which the individual returns to work, if holiday pay is not paid until the individual returns to work from a definite period of layoff. Payments to an individual for holiday pay for any holiday occurring in a week during which the individual was unemployed shall be deemed wages received for the week in which the holiday falls, if holiday pay is paid prior to the individual's return to work from a definite period of layoff.
However, payments to an individual for holiday pay which was earned but not paid prior to an indefinite layoff, or termination of employment, or commencement of unemployment caused by disability, as the case may be, shall not be construed to be wages or compensation for personal services under this division and benefits payable under this division shall not be denied or reduced because of the receipt of these payments.
Ca. Unemp. Ins. Code § 1265.6