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May 2028

31 daysStarts Monday, ends Wednesday22 working days8 weekend daysISO weeks 18–22

Calendar grid for 5/2028, weeks starting Sun
ISO week
18
19
20
21
22

Holidays in May

  • Cinco de MayoFri, May 5 · Federal
  • Mother's DaySun, May 14 · Federal
  • Memorial DayMon, May 29 · Federal

Federal holidays from 5 U.S.C. §6103, plus widely kept US observances. 7 religious dates fall in May 2028 as well — see the calendar with every holiday.

Moon phases

  • First QuarterTue, May 2, 10:25 PM
  • Full MoonMon, May 8, 3:48 PM
  • Last QuarterTue, May 16, 6:43 AM
  • New MoonWed, May 24, 4:16 AM
  • First QuarterWed, May 31, 3:36 AM

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

The moon through May

  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. 31
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 May 2028

May 2028 has 31 days. It begins on a Monday and ends on a Wednesday, which gives the month five Mondays, Tuesdays and Wednesdays — and only four of every other weekday. Of its 23 weekdays, 1 is a federal holiday, leaving 22 working days.

Cinco de Mayo falls on Friday, May 5, 2028. Mother's Day falls on Sunday, May 14, 2028. Memorial Day falls on Monday, May 29, 2028.

The month runs from Monday, May 1, 2028 to Wednesday, May 31, 2028, spanning ISO weeks 18 to 22.

Calendar with holidaysPrintable versionDownload PDFFull year 2028