2028 Calendar — Leap Year Grid With US, India & UK Holidays

A Leap Year, an Olympics, and an Election — Why 2028 Matters

In 2026, an LA28 broadcast coordinator at NBC Sports planning the 17-day Olympic window needs a single grid that already marks Independence Day (Tue Jul 4), the Opening Ceremony (Fri Jul 14), Memorial Day (Mon May 29 — which also collides with the UK Spring Bank Holiday), and the US Presidential Election (Tue Nov 7). This page is that artifact, built on the Gregorian Civil calendar — the 1582 reform of Pope Gregory XIII that corrected the Julian calendar's 11-minute-per-year drift.

The leap rule comes from the Council of Trent's 1563 directive to fix the Easter date, which had drifted 10 days from the vernal equinox. Christopher Clavius and Aloysius Lilius designed the corrected rule: leap if divisible by 4, except century years not divisible by 400. By that test, 2028 is a leap year (divisible by 4, not a century year). 2000 was leap (divisible by 400). 1900, 2100, 2200 are NOT. The Gregorian average year is 365.2425 days — versus the tropical year of 365.2422 — a residual error of 26 seconds per year, equivalent to one day every 3,236 years.

Christian Zeller's 1882 congruence and John Conway's 1973 Doomsday algorithm both compute the weekday for any Gregorian date with no lookup. For 2028, Conway's doomsday is Tuesday — the weekday of Jan 4 (leap-year anchor), Feb 29 (leap-day), Apr 4, Jun 6, Aug 8, Oct 10, Dec 12, and the last day of February (Feb 29 = Tuesday). Memorize century doomsdays: 1800s = Friday, 1900s = Wednesday, 2000s = Tuesday, 2100s = Sunday. From the century anchor, every year doomsday advances by 1 weekday per year, plus 1 extra in leap years.

The Los Angeles 2028 Summer Olympics — opening Friday July 14, 2028 and closing Sunday July 30 — will be the third Summer Games hosted by Los Angeles (1932, 1984, 2028), tied with London as the only city to host three times by 2028. The Paralympic Games follow August 15-27. The LA28 organizing committee has confirmed flag football, lacrosse, cricket (T20), squash and baseball/softball on the sport program — cricket's first appearance since the 1900 Paris Games.

November 7, 2028 is the next US Presidential Election — the Tuesday after the first Monday of November, per 3 U.S.C. § 1 (codified 1845 to give farmers time to travel after Sunday worship). The winner takes office Saturday January 20, 2029 (Inauguration Day per the 20th Amendment, ratified 1933), with the public ceremony shifted to Monday January 22 per precedent (the 1985 Reagan second-term and 2013 Obama second-term inaugurations were both moved off Sunday for the same reason).

For shorter-range tools see Days Until (countdown to any 2028 date), Leap Year Checker (test any year), Business Days Between (workday counts), and Moon Phase (lunar data for astrophotography sessions).

ISO 8601, ratified in 1988 and most recently amended 2019, defines YYYY-MM-DD date format and Monday-start week numbering. For 2028, ISO week 1 begins Mon Jan 3 (Jan 1 = Sat and Jan 2 = Sun belong to ISO week 53 of 2027). 2028 itself has 52 ISO weeks; the leap day Feb 29 falls in ISO week 9. The Indian Saka calendar, adopted by the Government of India on March 22, 1957 for parallel official use, makes 2028 CE = Saka 1949-1950.