Pi-Clock OS 2026-07-01r0

Pi-Clock OS - 2026-07-01r0

Open-source world clock display for ham radio operators.
Raspberry Pi OS kernel with Alpine Linux 3.23 userland.
A/B root partition scheme for safe, router-style upgrades.

Downloads

• SD card image (first install): Pi-Clock-2026-07-01r0.img.xz
• Rootfs tarball (upgrades): Pi-Clock-2026-07-01r0.rootfs.tar.xz

Upgrade from existing Pi-Clock OS

sudo pi-clock-upgrade --install

Default Credentials

• Username: pi-clock
• Password: raspberry
• SSH: Enabled (key-only by default)

Pi-Clock OS 2026-06-14r1

Pi-Clock OS - 2026-06-14r1

Open-source world clock display for ham radio operators.
Raspberry Pi OS kernel with Alpine Linux 3.23 userland.
A/B root partition scheme for safe, router-style upgrades.

Downloads

• SD card image (first install): Pi-Clock-2026-06-14r1.img.xz
• Rootfs tarball (upgrades): Pi-Clock-2026-06-14r1.rootfs.tar.xz

Upgrade from existing Pi-Clock OS

sudo pi-clock-upgrade --install

Default Credentials

• Username: pi-clock
• Password: raspberry
• SSH: Enabled (key-only by default)

Pi-Clock OS 2026-06-14r0

Pi-Clock OS - 2026-06-14r0

Open-source world clock display for ham radio operators.
Raspberry Pi OS kernel with Alpine Linux 3.23 userland.
A/B root partition scheme for safe, router-style upgrades.

Downloads

• SD card image (first install): Pi-Clock-2026-06-14r0.img.xz
• Rootfs tarball (upgrades): Pi-Clock-2026-06-14r0.rootfs.tar.xz

Upgrade from existing Pi-Clock OS

sudo pi-clock-upgrade --install

Default Credentials

• Username: pi-clock
• Password: raspberry
• SSH: Enabled (key-only by default)

Pi-Clock OS 2026-04-17r2

Pi-Clock OS - 2026-04-17r2

Open-source world clock display for ham radio operators.
Raspberry Pi OS kernel with Alpine Linux 3.23 userland.
A/B root partition scheme for safe, router-style upgrades.

Downloads

• SD card image (first install): Pi-Clock-2026-04-17r2.img.xz
• Rootfs tarball (upgrades): Pi-Clock-2026-04-17r2.rootfs.tar.xz

Upgrade from existing Pi-Clock OS

sudo pi-clock-upgrade --install

Default Credentials

• Username: pi-clock
• Password: raspberry
• SSH: Enabled (key-only by default)

Pi-Clock OS 2026-04-17r1

Pi-Clock OS - 2026-04-17r1

Open-source world clock display for ham radio operators.
Raspberry Pi OS kernel with Alpine Linux 3.23 userland.
A/B root partition scheme for safe, router-style upgrades.

Downloads

• SD card image (first install): Pi-Clock-2026-04-17r1.img.xz
• Rootfs tarball (upgrades): Pi-Clock-2026-04-17r1.rootfs.tar.xz

Upgrade from existing Pi-Clock OS

sudo pi-clock-upgrade --install

Default Credentials

• Username: pi-clock
• Password: raspberry
• SSH: Enabled (key-only by default)

Pi-Clock OS 2026-04-17r0

Pi-Clock OS - 2026-04-17r0

Open-source world clock display for ham radio operators.
Raspberry Pi OS kernel with Alpine Linux 3.23 userland.
A/B root partition scheme for safe, router-style upgrades.

Downloads

• SD card image (first install): Pi-Clock-2026-04-17r0.img.xz
• Rootfs tarball (upgrades): Pi-Clock-2026-04-17r0.rootfs.tar.xz

Upgrade from existing Pi-Clock OS

sudo pi-clock-upgrade --install

Default Credentials

• Username: pi-clock
• Password: raspberry
• SSH: Enabled (key-only by default)

Pi-Clock OS 2026-04-16r6

Pi-Clock OS - 2026-04-16r6

Open-source world clock display for ham radio operators.
Raspberry Pi OS kernel with Alpine Linux 3.23 userland.
A/B root partition scheme for safe, router-style upgrades.

Downloads

• SD card image (first install): Pi-Clock-2026-04-16r6.img.xz
• Rootfs tarball (upgrades): Pi-Clock-2026-04-16r6.rootfs.tar.xz

Upgrade from existing Pi-Clock OS

sudo pi-clock-upgrade --install

Default Credentials

• Username: pi-clock
• Password: raspberry
• SSH: Enabled (key-only by default)

Pi-Clock OS 2026-04-16r5

Pi-Clock OS - 2026-04-16r5

Open-source world clock display for ham radio operators.
Raspberry Pi OS kernel with Alpine Linux 3.23 userland.
A/B root partition scheme for safe, router-style upgrades.

Downloads

• SD card image (first install): Pi-Clock-2026-04-16r5.img.xz
• Rootfs tarball (upgrades): Pi-Clock-2026-04-16r5.rootfs.tar.xz

Upgrade from existing Pi-Clock OS

sudo pi-clock-upgrade --install

Default Credentials

• Username: pi-clock
• Password: raspberry
• SSH: Enabled (key-only by default)

Pi-Clock OS 2026-04-16r4

Pi-Clock OS - 2026-04-16r4

Open-source world clock display for ham radio operators.
Raspberry Pi OS kernel with Alpine Linux 3.23 userland.
A/B root partition scheme for safe, router-style upgrades.

Downloads

• SD card image (first install): Pi-Clock-2026-04-16r4.img.xz
• Rootfs tarball (upgrades): Pi-Clock-2026-04-16r4.rootfs.tar.xz

Upgrade from existing Pi-Clock OS

sudo pi-clock-upgrade --install

Default Credentials

• Username: pi-clock
• Password: raspberry
• SSH: Enabled (key-only by default)