Why checkpoint a meditation
In a twenty- or thirty-minute sit, time goes strangely — five minutes can feel
like an hour, and an hour like five. A soft interval bell every few minutes does
two jobs: it proves time is actually passing, and it gives wandering attention a
no-blame place to return to. Teachers of body-scanning and breath-counting styles
have used interval bells for exactly this since long before browser timers.
Set the interval above (off, 1, 3, 5, or 10 minutes), choose the same bell
family as your start and end sound, and press Begin sitting. Interval strikes are played
quieter than the opening and closing strikes, so the sit keeps a shape: one clear
bell to start, quiet marks along the way, a final strike to finish.
Common setups
Body scan: 20 or 30 minutes with a bell every 10. Breath counting: 15 minutes
with a bell every 5. A slow 60-minute sit: accept a mark at ten and twenty past,
or run two sessions back to back. There is no wrong configuration; the interval is
a tool, not a rule.
How loud is the interval bell compared to the start bell?
Noticeably quieter — about half the gain — so it marks time without startling you. The opening and closing strikes are full volume.
Does the interval clock drift if my phone sleeps?
The timer is anchored to the wall clock, not a counting loop, so interval marks stay accurate even in background tabs or after the screen dims. On laptops with a compatible browser, the screen is kept awake during the sit.
Can I get an interval longer than 10 minutes?
Ten minutes is the longest option on purpose: on longer sits, two or three quiet marks are usually enough, and the closing bell is what ends the sit.