February is the only month whose length changes from year to year, running to 28 days in an ordinary year and 29 in a leap year. 2028 gives February 29 days, and 6 February 2028 falls inside that count, seven months into the financial year that began the previous July and within the first two months of the 366-day calendar year.
Retail, hospitality, healthcare and emergency services rosters regularly schedule staff to work on Sundays as part of standard shift patterns that do not follow the Monday-to-Friday week. 6 February 2028 falls on Sunday, a working day for these shift-based industries even though it sits outside the standard working-day count above.
2028 has 366 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.