Time Duration Calculator
Calculate the exact duration between two dates and times. Perfect for event planning, age calculation, or measuring any time interval.
Step 1: Start Moment
📌 Tip
If you leave the time blank, midnight (00:00) is assumed. The calculator counts the full span from start to end inclusive/exclusive based on your settings below.
Step 2: End Moment
Duration principles
The result shows calendar‑accurate years, months, days, etc. For example, Jan 1 2024 → Jan 1 2025 is exactly 1 year.
Duration Results
Summary
Breakdown
Conversion
Total duration
1 year 0 months
or 365 days · 8,760 hours
Unit‑by‑unit breakdown
| Unit | Value |
|---|
Total in different units
* Approximations (month = 30.44 days, year = 365.25 days) for months/years.
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