The AFL finals series runs through most of September, culminating in the Grand Final at the very end of the month or the start of October. 27 September 2027 falls inside this finals fixture list, alongside the NRL finals running on a similar schedule, with both codes crowning premiers within weeks of each other.
The week containing Monday 27 September 2027 is counted from this date under the standard week-numbering convention used on this page, with weeks running Monday to Sunday rather than Sunday to Saturday. This convention affects rostering, payroll cycles and any planning done in weekly blocks across Australian workplaces that pay staff or schedule shifts on a weekly basis.
2027 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.