Day of Week Calculator
Our Day of Week Calculator helps you determine what day of the week any date falls on. Whether you need to plan events, check historical dates, or explore future dates, this tool provides comprehensive information about any date including the day of the week, week number, quarter, and much more.
How to Use the Day of Week Calculator
- Select a date using the date picker.
- Use the quick preset buttons for common dates like today, tomorrow, or holidays.
- View detailed information about the selected date including day of week, week number, and quarter.
- Explore the calendar view to see the entire month layout.
- Check historical facts and statistics about your selected date.
What Information Do You Get?
- Day of Week: Find out if your date is a Monday, Tuesday, or any other day.
- Day of Year: See which day of the 365 (or 366) days this date represents.
- Week Number: Discover which week of the year your date falls in.
- Quarter: Identify which business quarter the date belongs to.
- Calendar View: Visual monthly calendar highlighting your selected date.
- Season Information: Know which season the date falls in.
- Zodiac Sign: Discover the astrological sign for the date.
- Days Until/Since: Calculate how many days until or since the selected date.
Calendar Features
The integrated calendar view provides a visual representation of the month, making it easy to:
- See the complete monthly layout with all days of the week
- Quickly identify weekends (highlighted in a different color)
- Spot the current day and your selected date
- Navigate between months using Previous/Next buttons
- Jump to the current month instantly
Quick Date Presets
Save time with our convenient preset buttons:
- Today: Instantly check today's day of the week
- Tomorrow: Plan ahead by checking tomorrow's day
- Yesterday: Look back at yesterday's information
- New Year: Check what day New Year falls on
- Christmas: See what day of the week Christmas will be
- Valentine's Day: Plan your Valentine's celebration
Common Use Cases
- Event planning and scheduling
- Historical research and date verification
- Birthday and anniversary planning
- Holiday date checking
- Project timeline planning
- Academic calendar organization
- Travel planning and booking
- Meeting and appointment scheduling
Understanding Week Numbers
Week numbering follows the ISO 8601 standard, where:
- Week 1 is the first week with at least 4 days in the new year
- Weeks start on Monday and end on Sunday
- Most years have 52 weeks, some have 53
- Week numbers are commonly used in business and project management
Quarters Explained
The year is divided into four quarters for business and financial purposes:
- Q1: January - March
- Q2: April - June
- Q3: July - September
- Q4: October - December
Use our Day of Week Calculator to efficiently plan your schedule, explore dates, and make informed decisions based on comprehensive date information!