Day of the Week Finder: History Meets Calendar
Ever wondered what day Jesus was born? Or what day you’ll retire? Our Day of the Week Finder uses the Gregorian calendar to calculate any date from 1600 to 9999 — with 100% accuracy.
How It Works
Uses Zeller’s Congruence algorithm:
- Accounts for leap years
- Handles century rules (1900 not leap, 2000 is)
- Valid for 400+ years
Famous Historical Days
| Event | Date | Day |
|---|---|---|
| US Independence | July 4, 1776 | Thursday |
| Moon Landing | July 20, 1969 | Sunday |
| Berlin Wall Fall | Nov 9, 1989 | Thursday |
| 9/11 Attacks | Sep 11, 2001 | Tuesday |
Fun Facts
- Friday the 13th: Occurs 1–3 times per year
- Doomsday Rule: Memorize one date per month
- Perpetual Calendar: Repeats every 400 years
Planning Use Cases
- Wedding date selection
- Event scheduling
- Anniversary planning
- Historical research
Pro Tips
- Click quick buttons for famous dates
- Pair with Add Days for deadlines
- Use for astrology or numerology
FAQs
Before 1752? Uses proleptic Gregorian (accurate for science).
What about Julian calendar? Not supported — use for post-1582.
Can I find my 100th birthday? Yes — enter future date.
Conclusion
Time is more than numbers — it’s days with meaning. Use our Day of the Week Finder to connect past, present, and future. What day were you born?
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