Days Since Calculator - Calculate Days From Past Date to Today Accurate day calculation with multiple time units

Calculate how many days have passed since a specific date. Get accurate results with years, months, and days breakdown. Perfect for tracking milestones, project timelines, and personal anniversaries.

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Days Since Calculator

Calculate the exact number of days that have passed since any date

Select start date

Why Choose Our Days Since Calculator?

Professional days since calculator with accurate algorithms, multiple calculation types, and user-friendly interface. Perfect for business professionals, project managers, and anyone needing reliable date calculations.

Accurate Day Calculation

Calculate exact days passed since any date with precise algorithms handling leap years and month variations.

Core

Multiple Time Units

Get results in years, months, weeks, days, and hours for comprehensive time understanding.

Core

Flexible Options

Choose whether to include or exclude the start date in your calculation for different use cases.

Advanced

Real-time Updates

Results update automatically as you change dates, providing instant calculations.

Advanced

Export Results

Save and export your calculations for record keeping and sharing with others.

Features

Easy Sharing

Share calculation results via links or generate shareable reports.

Features

Ready to Experience Professional JSON Comparison?

Join thousands of developers who trust our JSON difference tool for their daily workflow. Start comparing JSON files with precision and speed.

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How to Use Our Days Since Calculator

Just a few simple steps to get accurate days since calculations. No installation required, runs completely in your browser with precise results.

1
Calendar

Select Start Date

Choose the date you want to calculate from using our intuitive date picker.

2
Settings

Configure Options

Set whether to include or exclude the start date in your calculation.

3
Calculator

Get Results

Receive instant calculation with detailed breakdown in multiple time units.

4
Download

Save & Share

Save your results or share them with others for collaboration.

See JSON Difference in Action

Watch this quick demo to see how easy it is to compare JSON files with our professional tool.

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Join thousands of developers who trust our JSON difference tool for their daily workflow. Start comparing JSON files with professional precision today.

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User Reviews

Join thousands of users who trust our Days Since Calculator for accurate and reliable date calculations.

Sarah

Sarah Johnson

Project Manager at TechCorp

The days since calculator is perfect for tracking project milestones. It saves me hours of manual calculations!

Michael

Michael Chen

HR Specialist at GlobalHR

I use this daily to calculate employee tenure. The multiple time unit display is incredibly helpful.

Emma

Emma Wilson

Event Planner at EventPro

Perfect for tracking how long it has been since events. The accuracy is spot-on every time.

10K+
Active Users
50K+
JSON Comparisons
99.9%
Uptime
4.9/5
User Rating

Simple, Transparent Pricing

Choose the perfect plan for your JSON comparison needs. Start free and upgrade as you grow.

Free

$0

Perfect for individual developers and small projects

  • Up to 1MB JSON files
  • Basic diff visualization
  • Real-time syntax validation
  • File upload support
  • Side-by-side comparison
  • Basic sharing
  • Community support
Get Started Free
Most Popular

Pro

$9/per month

Ideal for professional developers and teams

  • Up to 10MB JSON files
  • Advanced diff visualization
  • Multiple view modes (Unified, Delta)
  • Advanced comparison options
  • JSON Patch generation
  • Priority support
  • Team collaboration
  • Export results
  • Custom themes
  • API access
Start Pro Trial

Enterprise

$29/per month

For large organizations and enterprise teams

  • Unlimited JSON file size
  • All Pro features
  • Advanced security features
  • SSO integration
  • Custom branding
  • Dedicated support
  • SLA guarantee
  • On-premise deployment
  • Custom integrations
  • Training & onboarding
Contact Sales

Have questions about pricing? Check out our FAQ section or contact our sales team.

Days Since Calculator FAQ

Find answers to common questions about our Days Since Calculator and date calculation tools. Contact our support team.

Still Have Questions?

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Complete Date Calculation Toolkit

Choose from our comprehensive collection of date calculation tools. Each tool is designed for specific use cases and provides accurate, reliable results.

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