26 December 2026 falls in the final month of 2026, the 365-day year that closes on 31 December. The following year opens with New Year's Day and its own run of public holidays already fixed on the calendar for the twelve months ahead.
Any deadline or bill payment due on Saturday 26 December 2026 moves to the following Monday under standard business-day rules, since Saturday is not a working day for the Monday-to-Friday workforce this page counts by default. Shift-based industries follow their own separate rostering rules instead of this convention.
2026 has 365 days on the calendar. Leap years add a single extra day to February, giving those years 366 days instead of 365 and shifting the day-of-year number for every date from March onward by one compared with an ordinary year. This is the only irregularity in the length of the Australian calendar year.
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