2025 Calendar — Full Year Grid With US & India Holidays
A printable 12-month grid for 2025 with US federal holidays (rose), Indian national / religious holidays (emerald) and dates falling in both (fuchsia). Click any date for weekday, ISO week number, day-of-year and holiday name. 2025 was a non-leap year (365 days), Jan 1 fell on a Wednesday. Republic Day Jan 26 (Sun), Independence Day Jul 4 (Fri), Diwali Oct 20 (Mon), Christmas Dec 25 (Thu).
Quick Conversion
Formula: weeks = days / 7
Full Year 2025
Selected: 2025-12-25
2025 Holiday Reference Table
| Date | Day | Name | Country | Kind |
|---|---|---|---|---|
| 2025-01-01 | Wednesday | New Year's Day | BOTH | federal |
| 2025-01-20 | Monday | Martin Luther King Jr. Day | US | federal |
| 2025-01-20 | Monday | Inauguration Day | US | federal |
| 2025-01-26 | Sunday | Republic Day (India) | IN | federal |
| 2025-02-17 | Monday | Presidents Day | US | federal |
| 2025-02-26 | Wednesday | Maha Shivaratri | IN | religious |
| 2025-03-14 | Friday | Holi | IN | religious |
| 2025-03-31 | Monday | Eid al-Fitr (approx) | IN | religious |
| 2025-04-18 | Friday | Good Friday | BOTH | religious |
| 2025-04-20 | Sunday | Easter Sunday | BOTH | religious |
| 2025-05-26 | Monday | Memorial Day | US | federal |
| 2025-06-07 | Saturday | Eid al-Adha (approx) | IN | religious |
| 2025-06-19 | Thursday | Juneteenth | US | federal |
| 2025-07-04 | Friday | Independence Day | US | federal |
| 2025-08-15 | Friday | Independence Day (India) | IN | federal |
| 2025-09-01 | Monday | Labor Day | US | federal |
| 2025-10-02 | Thursday | Gandhi Jayanti | IN | federal |
| 2025-10-13 | Monday | Columbus Day | US | federal |
| 2025-10-20 | Monday | Diwali | IN | religious |
| 2025-11-11 | Tuesday | Veterans Day | US | federal |
| 2025-11-27 | Thursday | Thanksgiving | US | federal |
| 2025-12-25 | Thursday | Christmas Day | BOTH | federal |
Zeller's Congruence — Weekday Formula
h = (q + ⌊13(m+1)/5⌋ + K + ⌊K/4⌋ + ⌊J/4⌋ - 2J) mod 7q = day of month, m = month (3=Mar...14=Feb), K = year of century, J = century. 0=Saturday, 1=Sunday...
Worked for 2025-01-01: treat as Mar (m=13, K=24, J=20). h = (1 + ⌊13×14/5⌋ + 24 + ⌊24/4⌋ + ⌊20/4⌋ - 40) mod 7 = (1 + 36 + 24 + 6 + 5 - 40) mod 7 = 32 mod 7 = 4 = Wednesday.
Day-Of-Year Reference (Common 2025 Dates)
| Date | DOY | ISO Week | Note |
|---|---|---|---|
| 2025-01-01 | 1 | W1 | New Year |
| 2025-01-26 | 26 | W4 | Republic Day IN |
| 2025-03-14 | 73 | W11 | Holi |
| 2025-04-20 | 110 | W16 | Easter |
| 2025-05-26 | 146 | W22 | Memorial Day |
| 2025-07-04 | 185 | W27 | Independence Day US |
| 2025-08-15 | 227 | W33 | Independence Day IN |
| 2025-10-20 | 293 | W43 | Diwali |
| 2025-11-27 | 331 | W48 | Thanksgiving |
| 2025-12-25 | 359 | W52 | Christmas |
Need 2026 instead? 2026 calendar or jump to 2027.
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How To Use the 2025 Calendar — 5 Steps
- Step 1. Scan the 12-month grid. US federal holidays are rose; Indian holidays are emerald; both-country holidays (New Year, Christmas, Good Friday) are fuchsia.
- Step 2. Click any date cell to see weekday, day-of-year, ISO week number, and holiday name.
- Step 3. Use the holiday reference table to plan global team off-sites that respect both US federal and Indian gazetted dates.
- Step 4. Toggle Print View for a clean grid, then File → Print to save as PDF.
- Step 5. Inspected dates auto-save to localStorage history.
A Brief Calendar History
In 2026, a school administrator coordinating an India - US student exchange program needs a single artifact that lists both US federal holidays AND Indian gazetted holidays for academic year 2025. This grid is that artifact. It uses the Gregorian Civil calendar (the one Pope Gregory XIII introduced in October 1582 to correct a 10-day drift in the Julian calendar) and overlays the Indian Saka calendar via gazetted holidays (Republic Day, Independence Day, Gandhi Jayanti).
The Julian calendar (Julius Caesar, 45 BCE) had a 365.25-day year — 11 minutes too long, which compounded over 16 centuries to 10 days of drift. Gregory's fix: every century year (1700, 1800, 1900) is NOT a leap year UNLESS divisible by 400 (so 2000 was). By that rule, 2025 is not a leap year (not divisible by 4) and has 365 days, with January 1 falling on a Wednesday.
US federal holidays are codified in 5 U.S.C. 6103. The list has grown over time: Washington's Birthday (1879, later renamed Presidents Day), Memorial Day (1971 Uniform Monday Holiday Act), MLK Day (1986), Juneteenth (Juneteenth National Independence Day Act, signed June 17, 2021 — the most recent addition). All 11 holidays are observed by federal employees, banks and securities markets.
The Indian national calendar (Saka calendar), adopted March 22, 1957 by the Government of India, runs in parallel with the Gregorian for official purposes. Three gazetted national holidays anchor the year: Republic Day (Jan 26, commemorating the 1950 adoption of the Constitution), Independence Day (Aug 15, 1947 from British rule), and Gandhi Jayanti (Oct 2, Gandhi's birthday). Religious holidays — Diwali, Holi, Eid, Christmas, Easter, Maha Shivaratri — vary by state and follow lunisolar or lunar calendars.
ISO 8601, ratified 1988, gave the world the canonical YYYY-MM-DD date format and the Monday-start ISO week numbering displayed in this grid. Week 1 is the week containing the first Thursday of the year; by that rule 2025 begins in ISO week 1 (starting Mon Dec 30, 2024) and has 52 ISO weeks total. The Doomsday algorithm (John Conway, 1973) and Zeller's congruence (Christian Zeller, 1882) compute weekday from date with no lookup table — and this calendar uses Zeller internally.
The Sunday-start grid is American / Canadian / Indian custom; ISO weeks officially begin Monday. We display Sunday-start columns for visual familiarity but report ISO week numbers correctly in the fact panel. The choice of 7-day week descends from Babylonian astronomy via Judeo-Christian liturgical tradition; the names of the days in Romance languages still encode planetary deities (Monday = Lunes = Moon, Friday = Vendredi = Venus).
For per-day analysis use Days Between; for live moon phase try Moon Phase; or browse all Time & Date tools.
Trusted by pilots, professors, school admins and event planners
“I planned the 2025 Republic Day flypast briefings against this grid — DOY 26, weekday Sunday, ISO week 4. Print-to-PDF gave me a clean handout for the squadron.”
“I teach a seminar on calendar systems. The 2025 grid with both US and Indian gazetted holidays side-by-side is the cleanest comparative artifact I've seen. Students take screenshots for their term papers.”
“Our cross-Pacific schedule needs both US Thanksgiving (Nov 27) and Indian Diwali (Oct 20). Pinned this PDF to our staff-room corkboard for the whole academic year.”
“I cross-check global holidays for international gala bookings. Color-coded religious / federal / state classification saves me reading three almanacs. Today's view of 2025 from 2026 is also a fantastic retrospective tool.”
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