Day of the Week Calculator
Pick any date to instantly learn its day of the week, along with fun facts: the day of the year, the ISO-8601 week number, days remaining in the year and the full month calendar. Works for any Gregorian date, past or future.
TheCalculators — Day of the Week Calculator
Printed thecalculators.com
November 8, 2026
Sunday
Day 312 of 2026 · ISO week 45
Date facts
- Day of the Week
- Sunday
- Day of the Year
- 312 / 365
- ISO-8601 Week Number
- Week 45
- Days Left in Year
- 53
- Quarter
- Q4
- Leap Year
- 2026 is not a leap year
- Weeks into Year
- 44.6
- Unix Day Index
- 20,765
Calendar — November 2026
» marks the selected date.
ISO 8601 weeks start on Monday and week 1 contains the first Thursday of the year. Day names derive from Roman and Norse gods: Saturday honors Saturn, Thursday honors Thor.
Most useful next
Formula
Zeller's congruence: h = (q + ⌊13(m+1)/5⌋ + K + ⌊K/4⌋ + ⌊J/4⌋ + 5J) mod 7 → 0=Saturday … 6=Friday
Pro tips
- • Doomsday rule shortcut: 4/4, 6/6, 8/8, 10/10 and 12/12 always fall on the same weekday in a given year.
- • Try your birth date — the hero shows the exact weekday you were born.
FAQ
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