What 16:8 actually means
A 16:8 intermittent fasting schedule splits the day into two blocks: sixteen hours without food, and an eight hour window in which you eat normally. That is the whole rule. It says nothing about what goes on the plate, how many calories the day adds up to, or which foods are allowed. It is a timing pattern, not a diet.
If the terminology is new, start with our sourced introduction to intermittent fasting for beginners.
The sixteen hours are not sixteen waking hours. For most people the overnight stretch does the heavy lifting. Finish dinner at eight in the evening, sleep, skip breakfast, and the fast breaks at noon. That is a full 16:8 day, and the only part that took any effort was deciding not to eat in the morning.
Where the eating window usually lands
There is no correct placement. The window is yours to move, and the version people stick with is the one that fits the life they already have. Three common shapes:
- Noon to eight. Skip breakfast, eat lunch and dinner. The most common starting point, because it asks you to change one meal rather than three.
- Ten to six. A late breakfast and an early dinner. Suits people who wake up hungry and would rather stop eating in the evening than in the morning.
- Two to ten. Late shifts, late training, late dinners with other people. The window is still eight hours; it just sits later in the clock.
Moving the window between days is fine. A schedule that survives a dinner invitation is worth more than one that collapses the first time life is inconvenient.
Why people start with 16:8
16:8 tends to be the first schedule people try because it is the least disruptive one that still feels like a change. Nothing has to be weighed, logged, or given up. Most of the fasting happens while you are asleep. And because there is only one decision in the day, it is easy to say afterwards whether you kept it, which is not true of rules that depend on portion sizes or willpower at every meal.
It also scales in both directions. If eight hours feels tight, 13:11 is a gentler start. If it feels comfortable after a few weeks, the narrower schedules are the same idea with a shorter window.
The first week
A change in meal timing may feel unfamiliar at first, and individual responses vary. Do not treat discomfort as a target to push through. If you feel unwell, eat and speak to a healthcare professional.
A week is also long enough to notice a pattern and short enough not to read too much into any single day. That is the useful timescale: not whether today went well, but whether most of the last seven days did.
Tracking 16:8 with Pause
Pause treats 16:8 as a first-class schedule. You choose it once, and from then on the app is a fasting timer and nothing more. Tap start when your eating window closes. The start time is saved on the device immediately, so backgrounding the app, losing signal, or restarting the phone does not lose the fast. Elapsed time is recalculated from the saved timestamp rather than from a counter that was running in memory.
The Home Screen and Lock Screen widgets and the Live Activity show the time left without opening anything, which matters more than it sounds: the check that costs a glance is the one you actually make. Pause never ends a fast for you. You end it when you eat, and if you got the time wrong, you can correct it afterwards.
Alongside the timer, Pause keeps a water tracker and a thirty-day weight trend, so the three things people tend to watch during a fasting routine live in one place instead of three apps.
What Pause deliberately leaves out
No meal logging, no macros, no calorie counting, no food photos, no score for the day. Pause records when you fasted, not what you ate. That boundary is the point: it keeps the app usable next to whatever you are already doing, and it keeps the daily effort down to two taps.