| What it does | Free tool to plan your fasting schedule and eating windows with personalized nutrition targets
| Time duration calculator for hours, minutes, and dates
|
|---|
| Stage | Not given
| Not given
|
|---|
| Founded | Not given
| Not given
|
|---|
| Based in | Not given
| Not given
|
|---|
| Pricing model | Free
| Free
|
|---|
| Pricing | Not given
| Not given
|
|---|
| Key features | - Multiple fasting protocols including 16:8, 14:10, 18:6, 20:4, and OMAD
- Custom fasting hours option
- Personalized daily calorie goals using Mifflin-St Jeor equation
- Daily protein targets based on ISSN standards
- Metabolic milestones tracking ketone switch and autophagy
- Visual timeline of fasting schedule
- Export schedule as image or text
- No signup required
- Related tools including Intermittent Fasting Timer and Template
| - 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
|
|---|
| What makes it different | - No signup required to use calculators and export plans
- Personalized targets based on peer-reviewed research formulas
- Tracks metabolic phases like ketone switch and autophagy timing
- Plain-English educational content alongside tools
- Treats outputs as planning estimates with clear safety disclaimers
| - 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
|
|---|
| Community votes | 0 | 0 |
|---|
| DR (Domain Rating by Ahrefs) | 16 ▲ +1 (up) since last check | Not checked yet ● no change since last check |
|---|
| Trust Flow (Majestic) | 20 | 1 |
|---|
| Citation Flow (Majestic) | 23 | 18 |
|---|
| Referring domains (Majestic) | 83 | 2 |
|---|
Intermittent Fasting Calculator
Timespanly