| What it does | Time duration calculator for hours, minutes, and dates
| 200+ free online calculators for finance, health, math, and more with no sign-up required
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| Pricing model | Free
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| Key features | - Calculate elapsed time between two times or dates
- Handle shifts that cross midnight
- Support for multiple time formats: h:mm:ss, decimal hours, and total minutes
- Account for daylight saving time with timezone selection
- Add up to 20 time spans together
- Run calculations in browser with no data storage
- Pre-calculated common work shifts for reference
- Calculate hours worked with unpaid break deductions
- Show results in multiple formats for different use cases
| - Finance calculators including loans, taxes, investments, and budgeting
- Health calculators for BMI, calories, pregnancy, and wellness
- Education and GPA calculators for university graders and exam scores
- Construction and materials calculators for concrete, lumber, and costs
- No sign-up required to use any calculator
- Clear inputs and results with estimates labeled
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| What makes it different | - All calculations verified against 100+ automated tests before each release
- Handles edge cases like midnight crossings, month-end dates, and daylight saving
- Built by a single developer who personally checks every result
- No server storage or tracking of user inputs
- Comprehensive methodology page explains all calculation rules
| - Over 200 free calculators in one place
- Always free with no account or sign-up needed
- Organized by category for easy navigation
- Built and maintained by one person with AI assistance
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 30 ▲ +30 (up) since last check | 8 ● no change since last check |
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| Trust Flow (Majestic) | 1 | 5 |
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| Citation Flow (Majestic) | 18 | 20 |
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| Referring domains (Majestic) | 2 | 7 |
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Timespanly