Eating windows
Understand. Record. Prepare.
Record meal timing without prescribing a fasting plan.
AI-created editorial illustrationA timer describes an interval
Intermittent fasting describes eating patterns with periods without food, but a timer alone does not establish suitability or benefit. For people with diabetes, fasting can affect glucose management and requires individual planning. The NIDDK reference discusses these considerations with a clinical expert.
An eating-window record describes when meals occurred. It can also preserve sleep, shift-work, travel, and symptom context. A planned timer and the times you actually ate are different facts; neither establishes that a fasting routine is appropriate for you.
This hub offers a neutral timing guide, an elapsed-time calculator, and a meal-timing log. Fastora adds timers and history features. The free calculator uses dates and times to describe an interval, not to recommend a fasting length. Discuss changes in eating patterns with your care team when they affect medical conditions or medicines.
Practical guides for this topic.
Detailed examples, record-keeping questions, and sources you can check. New published guides for this app appear here automatically.

A medical fasting instruction is different from a fasting-app timer
Turn your laboratory’s fasting instructions into a clear checklist, including medicines, drinks, timing and what to report if preparation changes.

Record meal timing without turning it into a fasting target
A neutral timing log can show when you eat and how the day fits together, without prescribing a schedule.
Choose what you need today.
Browser log
Record individual entries, export CSV, or choose local saving.
Open log ↗02Printable sheet
Download a one-page A4 or US Letter PDF, or print a blank sheet from your browser.
Open sheet ↗InteractiveMeal-timing discussion planner
Turn medication and routine questions into a plan to discuss.
Use this tool ↓03Meal-gap time calculator
Check recorded intervals using full dates and times.
Use calculator ↓Meal-timing discussion planner
Before changing meal timing, collect questions about your existing care plan and daily routine. Answers organize the discussion; they never produce a “safe to fast” result or a fasting schedule.
Your result
Read the result before sharing. Your answers and PDF stay on this device unless you choose to share them.
This is not a suitability screen. Pregnancy, health conditions and a history of disordered eating need individual advice; they are not assessed here.
Sources and how this tool works
Original HealthLogKit tool; source checks are not clinical validation. No diagnosis or treatment plan is generated. Sources checked 2026-09-20.
- NIDDK: fasting and diabetes planning ↗
Fasting can complicate diabetes management; medicine changes require individual clinical guidance.
Nothing you enter here is sent to analytics or saved automatically. Keep a longer record or see the companion app.
Meal-gap time calculator
Calculate intervals from the times you recorded. Use full dates in the same fixed time zone, with no daylight-saving clock change. The result describes timing; it does not evaluate health or recommend a schedule.
No timing entered yet.
A clock interval is not a measurement of time asleep or a recommended fasting duration.
Fasting Timer Tracker: Fastora

Keep eating-window and fasting-timer records on iPhone.
Features listed by the developer
- Fasting timer and customizable plan settings
- Water, weight, and history records
- PDF reports and notifications
Website or app?
The website gives you free guides, browser logs, and printable PDFs, plus a timing calculator. Choose the app if its listed features fit the way you want to keep a longer record.
The website and app do not automatically synchronize. Check current in-app purchases, subscriptions, device support, and the app's own privacy details before downloading.
Published by Arda Sen. Feature descriptions checked against the App Store listing on 2026-09-20. Listing claims are not independent evidence of health benefits.
References for this resource hub
- NIDDK: fasting safely with diabetes ↗
Fasting with diabetes can present risks, and medicine changes need individual clinical guidance.
Educational content published by HealthLogKit with AI-assisted research and source checks. Not medical peer review. Read our editorial process.