📅 Date & Time Calculators
Accurate date and time calculators for age calculations, time duration, date arithmetic, and holiday countdowns. Calculate exact ages, time differences, date operations, and track days until Memorial Day and Christmas with precision.
Our date and time calculators provide precise solutions for all your date and time-related calculations. From determining exact ages and calculating time differences between dates to performing date arithmetic operations and tracking holidays like Memorial Day and Christmas, our tools help you handle these calculations quickly and accurately. Whether you're planning events, tracking milestones, managing schedules, calculating durations, or counting down to holidays, our calculators make date and time calculations simple and reliable.
Days Ago Calculators
View All →180 Days Ago from Today – Date Calculator (Local Time)
Find the exact date that was 180 days ago from today in your local time. Ideal for half-year planning, probation periods, and long-term contracts. Includes weeks, approximate months, and clear calendar rules.
120 Days Ago from Today | Date Calculator
Calculate the exact date 120 days ago from today. Perfect for quarterly planning, long-term project tracking, and extended time period calculations.
90 Days Ago from Today – Date Calculator (Local Time)
Find the exact date for 90 days ago from today in your local time. See days, weeks, and approximate months with clear rules, quick copy, and related date tools.
60 Days Ago from Today – Date Calculator (Local Time)
Find the exact date for 60 days ago from today in your local time. See days, weeks, and approximate months with clear rules, quick copy, and related date tools.
45 Days Ago from Today – Date Calculator (Local Time)
Find the exact date that was 45 days ago from today in your local time. Ideal for 6-week projects, extended reviews, and payment windows. Includes weeks, approximate months, and clear calendar rules.
30 Days Ago from Today – Date Calculator (Local Time)
Find the exact date for 30 days ago from today in your local time. See days, weeks, and approximate months with clear rules, quick copy, and related date tools.
Days After Calculators
View All →7 Days from Today – Date Calculator (Local Time)
Find the exact date that will be 7 days from today in your local time. Ideal for short-term planning, weekly schedules, and 7-day deadlines. Includes weekday, weeks, approximate months, and clear calendar rules.
14 Days from Today – Date Calculator (Local Time)
Find the exact date that will be 14 days from today in your local time. Ideal for bi-weekly cycles, payroll periods, and 2-week deadlines. Includes weekday, weeks, approximate months, and clear calendar rules.
21 Days from Today – Date Calculator (Local Time)
Find the exact date that will be 21 days from today in your local time. Ideal for 3-week sprints, vacation planning, and 21-day deadlines. Includes weekday, weeks, approximate months, and clear calendar rules.
30 Days from Today – Date Calculator (Local Time)
Find the exact date that will be 30 days from today in your local time. Ideal for monthly planning, billing cycles, and 30-day deadlines. Includes weekday, weeks, approximate months, and clear calendar rules.
45 Days from Today – Date Calculator (Local Time)
Find the exact date that will be 45 days from today in your local time. Ideal for 6-week projects, extended reviews, and payment windows. Includes weekday, weeks, approximate months, and clear calendar rules.
60 Days from Today – Date Calculator (Local Time)
Find the exact date that will be 60 days from today in your local time. Ideal for mid-term planning, bi-monthly cycles, and extended deadlines. Includes weekday, weeks, approximate months, and clear calendar rules.
Memorial Day Calculators
View All →Memorial Day Countdown | How Many Days Until Memorial Day?
See exactly how many days, weeks, Mondays, and business days are left until the next Memorial Day. This Memorial Day countdown updates automatically every day.
How Many Days Until Memorial Day 2025? | Memorial Day 2025 Countdown
Find out how many days, weeks, Mondays, Fridays, and business days are left until Memorial Day 2025 on May 26, 2025. Countdown updates automatically.
How Many Days Until Memorial Day 2026? | Memorial Day 2026 Countdown
See how many days and weeks remain until Memorial Day 2026 on May 25, 2026. Automatically updated Memorial Day 2026 countdown.
Memorial Day 2024 | When Is Memorial Day 2024?
Find the exact date of Memorial Day in 2024. See the weekday and Memorial Day weekend range for planning.
Juneteenth Calculators
View Details →Juneteenth Date Calculator — When Is Juneteenth?
Find the exact date of Juneteenth for any year. Learn when Juneteenth is celebrated, why it matters, and how it is observed nationwide.
Juneteenth Countdown — How Many Days Until Juneteenth?
Live countdown to the next Juneteenth. See how many days, hours, minutes, and seconds remain until June 19.
Juneteenth 2024 | When Is Juneteenth 2024?
Find the exact date and weekday of Juneteenth in 2024.
Juneteenth 2025 | When Is Juneteenth 2025?
Find the exact date and weekday of Juneteenth in 2025.
MLK Day Calculators
View All →MLK Day Countdown | How Many Days Until Martin Luther King Jr. Day?
Live countdown to the next Martin Luther King Jr. Day. See how many days, weeks, hours, minutes, and seconds remain until the upcoming MLK Day.
How Old Would Martin Luther King Jr. Be Today?
Calculate how old Martin Luther King Jr. would be today and on any date. See his actual birthdate, age at death, and use our interactive age calculator.
MLK Day Countdown by Year
Count down to MLK Day for specific years. Each page shows the exact date, day of the week, and live countdown information.
Presidents Day Calculators
View All →Presidents Day Date Calculator | When Is Presidents Day?
Find the exact date of Presidents Day for any year from 1900 to 2100. Includes a complete table of Presidents Day dates from 2000 to 2035, long weekend information, and calculation rules.
Presidents Day Countdown | How Many Days Until Presidents Day?
Live countdown to the next Presidents Day. See days, weeks, hours, minutes, and seconds until the upcoming holiday.
Presidents Day by Year
Find the exact date of Presidents Day for specific years. Each page shows the exact date, day of the week, and long weekend information.
Independence Day Calculators
View All →Independence Day Date Calculator — When Is the 4th of July?
Find the exact date and day of the week for Independence Day (4th of July) for any year. See if it creates a long weekend and explore a full 2000–2035 July 4th calendar.
Independence Day Countdown — How Many Days Until the 4th of July?
Live countdown to the next Independence Day (4th of July). See how many days, weeks, hours, minutes, and seconds remain until July 4.
Independence Day by Year
Find the exact date of Independence Day for specific years. Each page shows the exact date, day of the week, and long weekend information.
Christmas Calculators
View All →12 Days Before Christmas | Date Calculator
Find the exact date 12 days before Christmas. Includes weekday, ISO date, weeks/months and planning use cases.
10 Days Before Christmas | Date Calculator
Find the exact date 10 days before Christmas. Includes weekday, ISO date, weeks/months and planning use cases.
6 Days Before Christmas | Date Calculator
Find the exact date 6 days before Christmas. Includes weekday, ISO date, weeks/months and planning use cases.
7 Days Before Christmas | Date Calculator
Find the exact date 7 days before Christmas. Includes weekday, ISO date, weeks/months and planning use cases.
19 Days Before Christmas | Date Calculator
Find the exact date 19 days before Christmas. Includes weekday, ISO date, weeks/months and planning use cases.
30 Days Before Christmas | Date Calculator
Find the exact date 30 days before Christmas. Includes weekday, ISO date, weeks/months and planning use cases.
40 Days Before Christmas | Date Calculator
Find the exact date 40 days before Christmas. Includes weekday, ISO date, weeks/months and planning use cases.
45 Days Before Christmas | Date Calculator
Find the exact date 45 days before Christmas. Includes weekday, ISO date, weeks/months and planning use cases.
Thanksgiving Calculators
View All →Thanksgiving Date Calculator (U.S.) | What Day Is Thanksgiving?
Find the exact date of Thanksgiving for any year. This calculator instantly tells you which day Thanksgiving falls on, based on the U.S. rule: the fourth Thursday in November.
Thanksgiving Countdown | How Many Days Until Thanksgiving?
Instant countdown to Thanksgiving. See how many days are left until the next U.S. Thanksgiving holiday. Auto-calculated daily.
Past Thanksgiving Dates | Last 5, 10, or 20 Years (U.S.)
See when Thanksgiving fell in past years. Instantly generate a list of Thanksgiving dates for the last 5, 10, 20, or custom year ranges.
What Years Did Thanksgiving Fall on November 28?
See all years when U.S. Thanksgiving fell on November 28. Instant lookup based on the U.S. fourth-Thursday rule.
When Is Thanksgiving by Year?
Find the exact date of Thanksgiving for specific years. Each page shows the date, day of the week, and countdown information.
New Year Calculators
View All →New Year Countdown | Days Until New Year's Eve & New Year's Day
Live New Year countdown showing how many days, weeks, hours, minutes, and seconds are left until New Year's Eve and New Year's Day.
Days Until January 1 | New Year's Day Countdown
See how many days and weeks are left until January 1 (New Year's Day). Live countdown timer with days, weeks, hours, minutes, and seconds.
How Long Ago Was New Year? | Days Since New Year's Day
Find out how many days, weeks, and months have passed since New Year's Day for any year. Useful for tracking goals, timelines, and events.
End of Year Countdown | Days & Weeks Until December 31
See how many days and weeks are left until the end of the year (December 31). Live end-of-year countdown for planning and goals.
How Many Days Until 2025? | 2025 Countdown Calculator
Find out how many days, weeks, months, hours, and seconds are left until 2025. Live 2025 countdown calculator using your local time.
Year Countdown Calculators
View All →Count down to specific years. Each page shows the exact date, day of the week, and live countdown information.
Other Date & Time Calculators
Age Calculator | Calculate Age by Birth Date Online
Free online Age Calculator to calculate your exact age in years, months, and days from your date of birth. Quick, accurate, and easy to use!
Time Calculator | Date Difference & Add/Subtract Time
Free online time calculator to find the difference between two dates or add/subtract years, months, days, hours, minutes, and seconds from any date.
Time Duration Calculator | Free Online Date Time Span
Calculate the exact duration between two dates and times. Free time duration calculator for precise time span calculations, travel planning, and project timelines.
Date & Time Calculators | Age, Duration & Date Calculation Tools
Accurate date and time calculators for age calculations, time duration, date arithmetic, and holiday countdowns. Calculate exact ages, time differences, date operations, and track days until Memorial Day and Christmas with precision.
Age Calculator
Calculate exact age, time since birth, and upcoming milestones with precise date calculations.
Main Features
- ✓Exact age calculation in years, months, and days
- ✓Time since birth in various units
- ✓Upcoming birthday and milestone tracking
- ✓Support for different date formats
- ✓Leap year and calendar accuracy
Use Cases
- •Personal age tracking and milestone celebrations
- •Legal age verification and requirements
- •Insurance and medical age calculations
- •Event planning and age-based activities
- •Academic and professional age requirements
Date Time Add/Subtract Calculator
Add or subtract time durations from dates with precision using years, months, days, hours, minutes, and seconds.
Main Features
- ✓Date addition and subtraction calculations
- ✓Support for years, months, days, hours, minutes, and seconds
- ✓Multiple input formats (manual and picker)
- ✓Real-time calculation and result display
- ✓Date difference calculation mode
Use Cases
- •Project deadline calculations
- •Event planning and scheduling
- •Rental period calculations
- •Work hours and overtime tracking
- •Subscription renewal dates
Time Duration Calculator
Calculate the exact duration between two dates and times.
Main Features
- ✓Precise time duration calculations
- ✓Support for full date and time inputs
- ✓Negative duration handling
- ✓Multiple time unit displays
- ✓Copy results for easy sharing
Use Cases
- •Travel planning and arrival time calculations
- •Work shift duration and overtime tracking
- •Event planning and duration verification
- •Project timeline and deadline management
- •Personal time tracking and productivity analysis
Memorial Day Calculators
Track how many days, weeks, Mondays, Fridays, and business days remain until Memorial Day. Get real-time countdown updates for Memorial Day and Memorial Day weekend.
Main Features
- ✓Real-time countdown to Memorial Day
- ✓Days, weeks, Mondays, and Fridays remaining
- ✓Business days and weekend days calculation
- ✓Memorial Day weekend countdown
- ✓Specific year Memorial Day tracking (2025, 2026)
- ✓Automatic daily updates
Use Cases
- •Planning Memorial Day weekend activities
- •Scheduling work and vacation time
- •Event planning for Memorial Day
- •Tracking time until the long weekend
- •Business planning around Memorial Day
Christmas Date Calculators
Calculate dates before and after Christmas, track days until Christmas, find days since Christmas, and calculate days between holidays like Thanksgiving and Christmas or Halloween and Christmas.
Main Features
- ✓Christmas countdown calculator with real-time updates
- ✓Days before Christmas (12 days, 30 days, 60 days, etc.)
- ✓Days after Christmas calculations
- ✓Days since Christmas tracking
- ✓Christmas Eve date calculators
- ✓Between-holiday calculators (Thanksgiving to Christmas, Halloween to Christmas)
- ✓Weeks and months calculations
- ✓Automatic daily updates
Use Cases
- •Planning holiday shopping and gift deadlines
- •Scheduling Christmas events and parties
- •Tracking days until Christmas for children
- •Planning travel around Christmas
- •Calculating dates for holiday preparations
- •Tracking time between holidays
Why Use Our Date & Time Calculators?
Our date and time calculators offer several advantages that make date and time calculations easier and more accurate.
Date & Time Calculation Tips
Helpful tips to make the most of our date and time calculators and improve your calculation efficiency.
Frequently Asked Questions
Common questions about our date and time calculators.
Related Blog Posts
Explore our blog articles about date and time calculations, holidays, and calendar systems.
What Holiday Is on January 20, 2025? (MLK Day Explained)
Learn about the holiday on January 20, 2025, and why MLK Day falls on different dates each year.
ViewMartin Luther King Jr.'s Birthday vs MLK Day
Discover why MLK's birthday and MLK Day are different dates and when they coincide.
ViewMartin Luther King Day Dates by Year (2000–2035 Full Table)
Complete table of MLK Day dates from 2000 to 2035. Find when Martin Luther King Jr. Day falls each year.
ViewWhat Is Closed on Martin Luther King Jr. Day?
Find out what closes on MLK Day, including banks, post offices, schools, and government offices.
ViewHow to Celebrate Martin Luther King Jr. Day
Discover meaningful ways to celebrate MLK Day and honor Dr. King's legacy through service and reflection.
ViewHow Old Would Martin Luther King Jr. Be Today?
Calculate how old MLK would be today, in 2024, 2025, and any other year.
ViewWestern New Year vs Other New Years Around the World
Explore the differences between Western New Year (January 1) and other cultural New Year celebrations worldwide.
ViewWhy Was New Year Once on April 1?
Explore the historical connection between April 1, the Julian calendar, and New Year celebrations.
ViewIs New Year a Religious Holiday?
Learn about the religious and cultural significance of New Year celebrations around the world.
ViewBlack Friday Date from Thanksgiving: When Is Black Friday?
Find out when Black Friday falls for any year. Black Friday is always 1 day after Thanksgiving.
ViewDays Before Thanksgiving: Calculate Any Date Before Thanksgiving
Learn how to calculate any date before Thanksgiving. Find out when 30, 12, 7, or 3 days before Thanksgiving falls for any year.
ViewDays After Thanksgiving: Calculate Dates After Thanksgiving
Calculate any date after Thanksgiving for any year. Find out when 30, 50, or 90 days after Thanksgiving falls.
View
Last updated: 2025-10-21 — Compiled and reviewed by Calvin (Date & Time Research, FreeCalculators.app)