Our Mission
DateDistance.com was founded in 2024 with a mission to provide the most precise and reliable date and time calculations on the web. Whether you're a project manager tracking deadlines, an event planner coordinating timelines, or simply someone curious about a future or past date, our tools are designed to give you accurate results instantly.
Our Calculation Methodology
At DateDistance, accuracy is our top priority. Our calculations follow these principles:
ISO 8601 Standard
We follow the international standard for date and time representations, ensuring global accuracy and compatibility.
Leap Year Precision
Our algorithms properly account for leap years, including the special rules for century years (divisible by 100 but not by 400).
Business Day Calculations
When calculating business days, we exclude weekends and can optionally exclude holidays based on regional calendars.
Time Zone Management
All calculations can be adjusted for time zones, accounting for daylight saving time transitions when applicable.
Technical Implementation
Our calculations are powered by PHP's DateTime library, which implements robust date and time handling. For calculations spanning many years, we use specialized algorithms that account for calendar anomalies and astronomical adjustments.
// Example of our date calculation core algorithm
$startDate = new DateTime('now');
$interval = new DateInterval('P' . $years . 'Y' . $months . 'M' . $days . 'D');
$resultDate = clone $startDate;
if ($direction === 'future') {
$resultDate->add($interval);
} else {
$resultDate->sub($interval);
}
// Additional adjustments for business days
if ($businessDaysOnly) {
adjustForBusinessDays($resultDate, $daysToAdjust);
}Our Team
DateDistance is developed and maintained by a team of professionals with backgrounds in computer science, mathematics, and web development:
Alex Richards
Lead Developer & Mathematics Specialist
With 15 years of experience in software development and a Master's degree in Applied Mathematics, Alex ensures our calculations remain precise across all time ranges.
Dr. Maya Patel
Time Systems Consultant
Dr. Patel holds a PhD in Computer Science with a specialization in temporal logic and calendaring systems, ensuring our algorithms remain accurate across different calendar systems.
Carlos Mendez
UX Designer & Front-End Developer
With expertise in user experience design, Carlos ensures our date calculations are presented in an intuitive, accessible format for all users.
Verification & Accuracy
Our calculation system undergoes regular testing and verification:
- Cross-Verification: Results are cross-checked against multiple authoritative sources including astronomical calendars and international standards organizations.
- Edge Case Testing: We extensively test unusual date ranges, leap years, daylight saving transitions, and other edge cases that often cause errors in other calculators.
- Regular Updates: Our system is updated to accommodate new time zone changes, leap second adjustments, and calendar modifications worldwide.
- User Feedback: We continuously improve based on user feedback and verification reports.
Last comprehensive system verification: June 2025
What Users Say About DateDistance
"I rely on DateDistance for all my project planning. The ability to calculate business days has saved me from countless scheduling errors."
"As an event coordinator, I need reliable date calculations. DateDistance is my go-to tool for planning timelines across multiple events."
"The precision of DateDistance's calculations is impressive. I use it for calculating financial periods and it's never let me down."
Our Commitment to Accuracy
At DateDistance, we understand that accurate date and time calculations can be critical for business decisions, contract terms, project planning, and personal events. We remain committed to providing the most accurate, reliable, and user-friendly date calculation tools available on the web.
If you have any questions about our methodology or suggestions for improvement, please contact us.