I think calculation should start from 25th December.
Adjournment
Adjournment means suspending the proceedings of a meeting for the time being so that the meeting may be continued at a later date and time fixed in that meeting itself at the time of such adjournment or to decided later on. Only the business not finished at the original meeting can be transacted at the adjourned meeting.
The majority of members at a meeting may move an adjournment motion at a meeting. If the chairman adjourns the meeting, ignoring the views of the majority, the remaining members can continue the meeting. The chairman cannot adjourn the meeting at his own discretion without there being a good cause for such an adjournment. Where the chairman, acting bona fide within his powers, adjourns the meeting as per the view of the majority, the minority members cannot to continue with such meeting and, if they do the proceedings there will be null and void.
An adjourned meeting is merely the continuation of the original meeting and therefore, a fresh notice is not necessary, if the time, date and place for holding the adjourned meeting are decided and declared at the time of adjourning it. If a meeting is adjourned without stipulation as to when it will be continued, fresh notice of the adjourned meeting must be given.