Unichrono

Unichrono

Every timezone. Always right.

One unified place for all your times. A world clock widget for Android that keeps ticking, on any device.

The Unichrono widget on an Android home screen showing Canberra, New York, Munich and Bangalore with their local times

Why another world clock

The category is crowded, but the same complaint keeps coming back: the widget freezes or drifts.

Most world clock widgets refresh the time with background work. Battery optimisation, Doze and OEM task killers shut that work down, so the widget quietly stops at whatever time it last showed.

Unichrono does not run anything in the background to keep time. The clock ticks from the system clock itself, so it stays live and correct with no process of ours running, on Samsung and Xiaomi included.

What it does

Built for people whose family, team or clients are spread across timezones.

Home screen widget

Several places at once, in a few sizes, always live. Add it, pick your cities, done.

Your labels, not city names

Call it Home, Son, Daughter or Standup. Long names shorten gracefully instead of turning unreadable.

Correct DST, always

Times come from the IANA timezone database that ships with Android, so daylight saving is handled for you.

Clocks in your notifications

An optional ongoing notification keeps your times visible while you are in another app.

Light, dark, 12 or 24 hour

Follows your system by default, or set it yourself.

Offline and private

No network, no accounts, no ads, no tracking. The app has nothing to send anywhere.

A look at it

Straight from the Google Play listing.

Unichrono widget on an Android home screen showing clocks labelled Mom, NYC Office, Dev Team and SarahYour cities, under your own labels
Unichrono app listing Melbourne, Dubai, Paris, Rio de Janeiro and Los Angeles with local times and offsetsEvery timezone you care about, in one list
Unichrono clocks for Sydney and Chicago shown on an Android lock screenYour times without unlocking the phone
Unichrono clocks in the Android notification shade, beside the app settings screenQuick access from the notification shade

Under the hood

Kotlin, Jetpack Compose and Glance. Room holds your clocks and each widget's settings. No backend, no third party SDKs, no analytics.