Managing dates can be surprisingly complex. Whether you’re planning a trip, tracking deadlines, or just curious about a specific day in history, having a reliable date calculator can make your life easier. This Date Calculator offers three core tools to simplify any date-related task.

Key Features

1. Days Between Two Dates

Need to know how many days lie between two events? The Days Between tab does the math for you. Just enter a start and end date, and you’ll get the total number of days, along with breakdowns in weeks, months, years, hours, and minutes. It also tells you what day of the week each date falls on and checks if the time span includes leap years.

This feature is ideal for calculating:

  • Project timelines

  • Countdown to events

  • Age in days

  • Length of subscriptions or warranties

2. Add or Subtract Days

With the Add/Subtract Days tab, you can easily shift a date forward or backward. Enter a base date and a number of days to add or subtract. The tool instantly shows you the resulting date and how many hours are involved in the change. It also shows the day of the week for both dates.

Use this tool when:

  • Setting reminders or follow-ups

  • Calculating return dates or deadlines

  • Planning future milestones

3. Day of the Week Finder

Ever wondered what day of the week your birthday falls on this year? The Day of Week tab reveals the weekday for any selected date. It also provides helpful context like the ISO format, Unix timestamp, and how many days remain until that date comes around again.

Great for:

  • Personal milestones

  • Scheduling appointments

  • Learning about historical dates

Clean Interface and Responsive Design

The layout is designed for clarity. Each tool is easy to use, even on smaller screens. Tabs switch smoothly between functions, and inputs come pre-filled with today’s date or helpful defaults. The calculator includes error handling, so you’ll always know when an input needs fixing.

Who Can Use This?

This tool is useful for:

  • Students planning academic calendars

  • Project managers tracking deliverables

  • Travelers organizing trips

  • Anyone needing a quick and accurate date calculation

Final Thoughts

This Date Calculator is more than a basic tool. It’s built for speed, accuracy, and clarity, with all the extra insights you didn’t know you needed. No distractions, no fluff—just straightforward date calculations.

Date Calculator

Perform various date calculations with ease

Days Between
Add/Subtract Days
Day of Week
Please enter valid dates. End date must be after start date.