Time Duration Calculator
Calculate time differences, add or subtract time intervals, and convert between different time formats for scheduling and time management.
Time Calculation Results
Time Details:
Additional Information:
About
Our Time Duration Calculator helps you calculate time differences, add or subtract time intervals, and convert between time units for scheduling, project management, and time tracking.
Why Choose
Multiple calculation modes, business day support, various time formats, real-time clock display, timezone awareness, and comprehensive time unit conversions for all time management needs.
Features
Time difference calculation, add/subtract time operations, time unit conversion, business days filtering, multiple output formats, and live time display with examples.
Benefits
Accurate time planning, project scheduling, work hour tracking, deadline calculation, meeting duration planning, and efficient time management for personal and professional use.
Choose Mode
Select between time difference calculation, add/subtract time operations, or time unit conversion based on your specific time calculation needs.
Enter Times
Input your dates and times using the date/time pickers or enter values for conversion. Use quick examples for common scenarios and calculations.
Get Results
View comprehensive time calculations in multiple formats including hours, minutes, seconds, days, and business days with detailed breakdowns.
Frequently Asked Questions - Time Duration Calculator
Simply enter the start date and time in the first field, and the end date and time in the second field. The calculator automatically handles date changes and calculates the total duration across multiple days, including weekends and holidays.
Calendar days include all days of the week including weekends and holidays. Business days only count Monday through Friday, excluding weekends. Use business days for work-related calculations and project planning that doesn't include weekends.
The calculator is accurate to the minute level for date/time calculations and supports decimal precision for unit conversions. It properly handles daylight saving time transitions and leap years for accurate long-term calculations.
Yes! Use the "Add/Subtract Time" mode to add or subtract days, hours, and minutes from any base date and time. This is perfect for calculating deadlines, scheduling future events, or determining past dates.
You can convert between seconds, minutes, hours, days, weeks, months, and years. The calculator handles both precise conversions (like 60 seconds = 1 minute) and approximate conversions (like average month = 30.44 days) with customizable decimal precision.