Date Calculator
Calculate the difference between dates, add or subtract time, and plan future events.
Quick Selections
Start Date
Enter the first date
From Date
End Date
Enter the second date
To Date
Date Calculations Guide: Business Days, Time Differences, and Planning
Comprehensive guide to date calculations, business day counting, project planning, and understanding different calendar systems for accurate time management.
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Calendar Days
Total days between two dates, including weekends and holidays
Business Days
Working days only (Monday-Friday), excluding weekends and holidays
Date Planning
Add or subtract days to find future or past dates for planning
Business Day Calculations
Essential for project management, contracts, and business planning
What Counts
- • Monday through Friday
- • Standard working hours (9 AM - 5 PM)
- • Days when businesses are typically open
What's Excluded
- • Weekends (Saturday & Sunday)
- • National holidays
- • Company-specific holidays
Common Use Cases
Project Deadlines
Calculate realistic completion dates excluding weekends
Contract Terms
Legal documents often specify business days for responses
Shipping & Delivery
Calculate delivery times for business operations
Frequently Asked Questions
Common questions about date calculations and business day counting