resetA 14:10 schedule means 14 hours in the fasting window and 10 hours in the eating window. If the last caloric intake is at 7 pm, the 14-hour point is 9 am the next day. The two windows total 24 hours.
Work forwards or backwards
| Fixed event | Calculation | Other endpoint |
|---|---|---|
| Dinner ends at 6 pm | Add 14 hours | 8 am next day |
| Dinner ends at 7:30 pm | Add 14 hours | 9:30 am next day |
| Breakfast at 8:30 am | Subtract 14 hours | 6:30 pm previous day |
Working backwards is helpful when breakfast is fixed by a commute or family routine. Working forwards is helpful when dinner is the less flexible meal. Neither approach tells you whether fasting is suitable for you; it simply reveals the practical constraint.
What changes after a late dinner?
Suppose your usual interval is 7 pm to 9 am, but dinner ends at 8:30 pm. Keeping breakfast at 9 am gives a 12-hour, 30-minute interval. Keeping a 14-hour target moves the endpoint to 10:30 am.
Those are different records, not good and bad versions of the same day. You can keep an earlier breakfast and record the shorter interval. A missed target does not create a debt to repay tomorrow.
Set up a useful record
Reset includes a 14:10 preset. Check the start time before relying on its countdown, especially when you open the app after dinner. An incorrect start changes both the expected finish and the recorded duration.
For weekly reflection, compare the start and end times alongside target completion. A percentage alone can hide that the original timetable no longer fits your mornings. See what completion rate means.
Compare without assuming longer is better
A 14:10 versus 16:8 comparison helps you see which two hours move when the target changes. The calculator lets you try your own times.
These examples are for planning and logging, not medical advice. Read the safety guidance before changing your eating routine.