September is the third and final month of the financial year's first quarter, which runs from July to September. September 2029 falls a quarter of the way through the financial year that began the previous July, in the third calendar quarter of 2029 under the standard January-to-December system used across most business reporting. The AFL finals series runs through most of September, ahead of the Grand Final.
September closes the financial year's first quarter, which runs from July to September, and sits in the third calendar quarter of 2029, which closes at the end of the same month. Both quarter systems reset together at the end of September 2029, one of the few points where the two calendars align on the very same date. Spring begins on 1 September, the first day of September.
September 2029 runs to 30 days and closes the third calendar quarter of 2029, nine months into the 365-day year. The financial year that began the previous July closes its first quarter at the same point, with three-quarters of the twelve-month cycle still remaining before the 30 June close the following year. School Term 3 ends toward the close of September or the start of October, depending on the state.