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DateAlmanac

September 2028

  • 30 days
  • Starts Friday
  • Ends Saturday
  • 20 working days
  • 9 weekend days
  • ISO weeks 35–39
Calendar grid for 9/2028, weeks starting Sun
ISO week number, Monday to Sunday
35
36
37
38
39

Holiday or observanceWeekend

Holidays in September

  • Labor DaySep 4
  • National Grandparents DaySep 10
  • Patriot DaySep 11

Federal holidays from 5 U.S.C. §6103, plus widely kept US observances. 3 religious dates fall in September 2028 as well — see the calendar with every holiday.

Moon phases

  • Full moon

    Sun, Sep 3

    7:47 PM ET

  • Last quarter

    Mon, Sep 11

    8:45 PM ET

  • New moon

    Mon, Sep 18

    2:23 PM ET

  • First quarter

    Mon, Sep 25

    9:09 AM ET

Times in US Eastern. Computed from Meeus, Astronomical Algorithms, ch. 49.

The moon through September

  1. 1
  2. 3
  3. 5
  4. 7
  5. 9
  6. 11
  7. 13
  8. 15
  9. 17
  10. 19
  11. 21
  12. 23
  13. 25
  14. 27
  15. 29
  16. 30
The moon every other evening, drawn at its true illumination. The terminator is a semi-ellipse, not a straight edge — it only looks straight at the quarters.

About September 2028

September 2028 has 30 days. It begins on a Friday and ends on a Saturday, which gives the month five Fridays and Saturdays — and only four of every other weekday. Of its 21 weekdays, 1 is a federal holiday, leaving 20 working days.

The September equinox falls on Friday, September 22, 2028, the 22nd of the month.

2028 at a glance

Calendar with holidaysPrintable versionDownload PDFFull year 2028