How Time Duration is Calculated

This calculator determines the **exact time span** between two chosen dates and times. Unlike simple subtraction, calculating duration across months and years requires accounting for variable month lengths and leap years for precision.

Common Uses for Time Interval Calculation

• **Project Planning:** Determine the total elapsed time of a project in business days, hours, and minutes.
• **Personal Milestones:** Calculate the exact time since a major life event, such as a birthday, anniversary, or start of a new job.
• **Academic Deadlines:** Precisely measure the time remaining until an important assignment or exam.
• **Software Testing:** Evaluate the latency or runtime between two execution points.

Precision is key. This calculator uses milliseconds to ensure the most accurate breakdown, even across centuries!