Weekday calculator · ISO 8601
What day of the week is it?
Tuesdayis a Tuesday.
Year by year
The same date over the next years
A fixed date drifts to a new weekday each year, jumping two days whenever a February 29 falls in between. Here is July 14 across the coming years.
| Year | Date | Day of the week |
|---|---|---|
| 2026 | Jul 14, 2026 | Tuesday |
| 2027 | Jul 14, 2027 | Wednesday |
| 2028 | Jul 14, 2028 | Friday |
| 2029 | Jul 14, 2029 | Saturday |
| 2030 | Jul 14, 2030 | Sunday |
| 2031 | Jul 14, 2031 | Monday |
Holidays & events
What day of the week do holidays fall on?
Holidays land on a different weekday almost every year. Here is the next date for each major holiday and observance, with the day of the week it falls on. Tap any event for the full breakdown on the when is... page.
| Event | Next date | Day of the week |
|---|---|---|
| Labor Day | Sep 7, 2026 | Monday |
| Autumn Equinox | Sep 22, 2026 | Tuesday |
| Columbus Day | Oct 12, 2026 | Monday |
| Halloween | Oct 31, 2026 | Saturday |
| Daylight Saving Time ends | Nov 1, 2026 | Sunday |
| Veterans Day | Nov 11, 2026 | Wednesday |
| Thanksgiving | Nov 26, 2026 | Thursday |
| Black Friday | Nov 27, 2026 | Friday |
| Cyber Monday | Nov 30, 2026 | Monday |
| Winter Solstice | Dec 21, 2026 | Monday |
| Christmas Day | Dec 25, 2026 | Friday |
| New Year's Eve | Dec 31, 2026 | Thursday |
| New Year's Day | Jan 1, 2027 | Friday |
| Martin Luther King Jr. Day | Jan 18, 2027 | Monday |
| Mardi Gras (Fat Tuesday) | Feb 9, 2027 | Tuesday |
| Ash Wednesday | Feb 10, 2027 | Wednesday |
| Valentine's Day | Feb 14, 2027 | Sunday |
| Super Bowl Sunday | Feb 14, 2027 | Sunday |
| Presidents' Day | Feb 15, 2027 | Monday |
| Daylight Saving Time starts | Mar 14, 2027 | Sunday |
| St. Patrick's Day | Mar 17, 2027 | Wednesday |
| Spring Equinox | Mar 20, 2027 | Saturday |
| Palm Sunday | Mar 21, 2027 | Sunday |
| Good Friday | Mar 26, 2027 | Friday |
| Easter Sunday | Mar 28, 2027 | Sunday |
| Easter Monday | Mar 29, 2027 | Monday |
| April Fools' Day | Apr 1, 2027 | Thursday |
| Earth Day | Apr 22, 2027 | Thursday |
| Cinco de Mayo | May 5, 2027 | Wednesday |
| Mother's Day | May 9, 2027 | Sunday |
| Pentecost | May 16, 2027 | Sunday |
| Memorial Day | May 31, 2027 | Monday |
| Juneteenth | Jun 19, 2027 | Saturday |
| Father's Day | Jun 20, 2027 | Sunday |
| Summer Solstice | Jun 21, 2027 | Monday |
| Independence Day | Jul 4, 2027 | Sunday |
FAQ
Common questions
Days of the week, weekday numbers, and how dates shift year to year.
Date to week converter →What day of the week is it today? +
Today, July 14, 2026, is a Tuesday. Use the calculator above to check the weekday for any other date.
How do I find the day of the week for any date? +
Enter the date in the calculator above and it returns the weekday instantly. Behind it, the date is mapped onto the 7-day cycle from a known reference point, the same calculation a spreadsheet or programming language uses.
Does the same date fall on the same weekday every year? +
No. A date moves forward by one weekday each year, and by two after a leap day has passed. That is why your birthday lands on a different day each year and repeats on the same weekday only every 5 to 6 years.
Is Monday or Sunday the first day of the week? +
It depends on the system. ISO 8601, used across most of the world, treats Monday as day 1 and Sunday as day 7. The common US convention starts the week on Sunday.
What is the weekday number of a date? +
Under ISO 8601 each weekday has a number from 1 to 7, Monday being 1 and Sunday 7. July 14, 2026 is a Tuesday, which is ISO weekday 2.
Can I check dates far in the past or future? +
Yes. The calculator works for any date in the Gregorian calendar, decades back or forward, so you can check historical dates or plan around a future one.
More tools
Related calculators
Current week number
See this week's ISO week number, updated automatically.
Open →Date to week
Convert any date to its ISO week number and back.
Open →2026 week calendar
Every ISO week of the year with its date range.
Open →Pregnancy weeks
Pregnancy week, trimester and estimated due date.
Open →Fiscal calendar
Fiscal-year week numbering for US and UK.
Open →ISO 8601 guide
How ISO week numbering works, in plain language.
Open →How it works
Finding the day of the week for any date
Every date sits somewhere in a repeating 7-day cycle. Once you fix one known weekday, every other date follows by counting forward or back. The calculator does this instantly, and so can a spreadsheet or a line of code.
To get the weekday yourself without a calculator:
Excel / Google Sheets: =TEXT(A1, "dddd") → Friday
=WEEKDAY(A1, 2) → 5 (Mon=1 .. Sun=7)
JavaScript: new Date("2026-12-25")
.toLocaleDateString("en-US", { weekday: "long" }) → "Friday"
PHP: date("l", strtotime("2026-12-25")) → "Friday"
The 2 in WEEKDAY and the ISO numbering both put Monday first,
which matches the ISO 8601 standard the rest of the site uses.