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Timespanly vs The Body Index

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Timespanly compared with The Body Index
DetailTimespanly logo TimespanlyThe Body Index logo The Body Index
What it doesTime duration calculator for hours, minutes, and dates Free body-metric calculators with no accounts or ads in results
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFree Free
PricingNot given Not given
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
  • Open source formulas on GitHub
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
  • Calculators for metrics beyond BMI that major sites haven't adopted
  • Open source formulas validated against peer-reviewed research papers
  • All code available under MIT license for verification and reuse
  • Free embeddable widgets with attribution for other websites
Community votes00
DR (Domain Rating by Ahrefs)30 +30 (up) since last checkNot checked yet no change since last check
Trust Flow (Majestic)10
Citation Flow (Majestic)180
Referring domains (Majestic)20

4 details filled in for both companies.

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