A clock app for Android: alarms at a fixed time or following the sun – like sunrise or sunset – and timers that repeat and chain. No ads ever and completely offline.
An alarm clock is only worth the morning it does not fail. Risetime’s alarms use Android’s own alarm clock, the same system mechanism as your phone’s built-in clock app: they ring through Doze mode and Battery Saver, and after a restart, even before you first unlock the phone. Timers keep counting with the app closed; the countdown in your notification shade is drawn by Android itself.
Some phones still stop apps in the background. Settings → Reliability checks what yours needs and gives each missing item a Fix button. Make sure it rings
Alarms and timers, in one app
Alarms: a clock time, or a moment of the sun
Set an alarm at 07:00, or on sunrise, sunset or solar noon, or on a moment you define: a sun angle, a fraction of the night. A sun alarm keeps its distance from that moment and is recalculated every day, so it follows the seasons without you touching it. How to set a sunrise or sunset alarm
Timers: one, or a sequence that loops
Type a duration and start it, the way a microwave does. Or chain timers into a sequence, twenty-five minutes then five, and loop it for a number of rounds or for good: an intermediate ring between timers, the full ring at the end. How to repeat or chain timers
How the sunrise alarm works
Pick your anchorChoose a moment of the sun: sunrise, noon, sunset, or nadir. This is the reference point your alarm tracks.
Set your offsetDecide how far before or after. Thirty minutes before sunrise. One hour after sunset. Pick which days it repeats.
That's itRisetime recalculates the exact alarm time every day. Sunrise drifts with the seasons, and your alarm follows. You never adjust it.
What people use it for
By the sun
A day that follows the sun: wake at sunrise, wind down before it, and keep clock alarms for the hours other people expect of you.
Photographers and astronomers: golden hour, blue hour and astronomical night are angles of the sun, not fixed times. Set the angle once; it holds at every latitude and season, offline in the field. Golden hour, blue hour and night sky alarms
Meditation, yoga and a practice at first light: the sun salutation as the light arrives, or a sit before it. Anchor on sunrise, on civil dawn by its angle, or on a fraction of the night. Sunrise meditation and yoga alarm
Dawn patrol: out in the water before the light, on an alarm that moves with first light instead of a time you reset every few weeks. Set an alarm before sunrise
Pre-dawn risers: set your offset before sunrise once and it tracks sunrise every day. Check your own timetable for the exact moment; the alarm is the part that never drifts. How the offset works
Outdoor workers, dog walkers, farmers: if your day starts with daylight, your alarm should too.
With timers
Work and focus with Pomodoro: twenty-five minutes, five minutes, looped, in the same app as your alarms. A simple Pomodoro timer for Android
Interval training: forty seconds on, twenty off, eight rounds, with the round on the row. Interval training timer
Meditation bells: a bell to settle in, to begin, to ease off and to close the sit, with nothing to dismiss. Bells for a sitting practice
Cooking in stages: ten minutes to brown, twenty to simmer, one full ring when it’s done.
Screenshots
Pick your anchor and offsetTimers that chain and loopWake gentlyReliability you can check
Works offline, on your phone
Everything happens on your phone: sunrise math, your alarms, your timers, your location. Risetime does not request internet permission. There is no server. There is no account to create. There is no analytics SDK measuring how you use the app.
No INTERNET permission: the app cannot connect to the internet
No analytics, crash reporting, or telemetry of any kind
No accounts, no cloud sync, no sign-in
Location stays on your device, used only for sunrise math
Free for up to three alarms and three timers. Unlimited as a supporter.
Risetime is free for up to three alarms and three timers – for good. Need more? Use those three first, and see if it's worth your support: supporters get unlimited alarms and timers, yearly or once. If not, I'll be happy to hear you out. You'll find it in Settings.
No nag screens, no countdowns, no "upgrade to continue" prompts. Just an honest option when you're ready.
Frequently asked questions
What does Risetime do?
Risetime is a clock app for Android. Its alarms ring at a set time or on a moment of the sun, recalculated every day for your location, so they follow sunrise and sunset through the year. Its timers run on their own or chain into a sequence that loops.
Is Risetime a sunrise light alarm that brightens the screen?
No. It rings at the real sunrise where you are, recalculated every day; it does not brighten the room beforehand. When it rings, the screen fades in from black and the volume can rise gradually.
Does the alarm still go off in Doze mode or Battery Saver?
Yes. Risetime uses Android’s setAlarmClock API, the same system-level mechanism as your built-in clock app, and a Reliability screen checks the permissions your phone needs. Alarms ring even before the first unlock after a restart.
Does Risetime need an internet connection?
No. Risetime has no internet permission at all: it cannot connect, even if it wanted to. Sunrise and sunset times are computed on your device. It works in airplane mode, in the field, anywhere.
Can I set a repeating timer?
Yes. Set Loop on a timer or a sequence: a number from 2 to 99 runs it that many times, ∞ runs it until you stop it. Each round gives one intermediate ring and starts the next on its own.
Will the end of a timer ring like an alarm?
Yes. The end of a single timer, or of the last timer of a sequence, brings up the ringing screen and rings for ten minutes by default (up to 25 minutes, or until you stop it, in Settings) unless you tick Intermediate ring at the end. The handovers in between give an intermediate ring.
Can I set an alarm for dawn, golden hour or the dark of night?
Yes, by the angle of the sun. Create an anchor at −6° for civil dawn, +6° in the evening for golden hour, −18° for astronomical night, and set alarms on them. Where an angle is never reached for part of the year, the app says so and the alarm skips those days rather than ring at an invented time.
Is Risetime free?
Free for up to three alarms and three timers, for good. Need more? Use those three first, and see if it’s worth your support: supporters get unlimited alarms and timers, yearly or once.
Set it once. Your alarms follow the seasons, your timers keep the rhythm.
