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DateAlmanac

January 2028

  • 31 days
  • Starts Saturday
  • Ends Monday
  • 20 working days
  • 10 weekend days
  • ISO weeks 52–5
Calendar grid for 1/2028, weeks starting Sun
ISO week number, Monday to Sunday
52
1
2
3
4
5

Holiday or observanceWeekend

Holidays in January

  • New Year's DayJan 1
  • Birthday of Martin Luther King, Jr.Jan 17

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

Moon phases

  • First quarter

    Tue, Jan 4

    8:40 PM ET

  • Full moon

    Tue, Jan 11

    11:02 PM ET

  • Last quarter

    Tue, Jan 18

    2:25 PM ET

  • New moon

    Wed, Jan 26

    10:12 AM ET

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

The moon through January

  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 January 2028

January 2028 has 31 days. It begins on a Saturday and ends on a Monday, which gives the month five Saturdays, Sundays and Mondays — and only four of every other weekday. Of its 21 weekdays, 1 is a federal holiday, leaving 20 working days.

Because 1 January falls on a Saturday, the first days of the month still belong to ISO week 52 of 2027; ISO week 1 of 2028 does not begin until the first Monday.

2028 at a glance

Calendar with holidaysPrintable versionDownload PDFFull year 2028