Read the metric definition
A zero or dash in the chart means no completed main-history duration was counted for that date. It does not explain what happened outside the app.
Inspect the contributing records
Check whether a session is still running, ended the next day, was archived, or was simply never recorded. Those are different reasons for the same quiet-looking bar.
The chart's compact hour labels are rounded, while individual records retain hours-and-minutes displays. A summary is a view of stored timing data, not a measurement of nutrition, mood, or medical outcomes.
Check the relevant distinction
If you were intentionally taking a break from tracking, there may be nothing to repair. A log can contain honest gaps without needing retrospective invented entries.
| Check | Practical meaning |
|---|---|
| Empty bar | No counted completed duration |
| Explanation | Requires additional context |
Interpret within the data limits
Avoid turning missing data into a verdict about behavior, food intake, or effort. The chart can only summarize the records that are present.
Fastly is a lifestyle timer and journal. These notes explain the app and offer reflection prompts. They are not medical advice or a prescribed eating schedule.