Beijing Time Sync

Your System Time

--:--:--

.000

----

Official Beijing Time

--:--:--

.000

----

Time API

Some APIs may be blocked by CORS or network policies; switch source if it fails.

Unix Timestamp (s)

Unix Timestamp (ms)

Sync Advice

Windows

Right-click the taskbar clock → Adjust date/time → turn on "Set time automatically".
Control Panel → Date and Time → Internet Time → Update now, or use time.windows.com.

macOS

System Preferences → Date & Time → check "Set date and time automatically".

Linux

sudo timedatectl set-ntp true
sudo systemctl restart systemd-timesyncd

How to use

The left clock shows your system time, the right shows the official Beijing time. Click "Measure & Sync" to query a network time API and compensate for network latency, then see how far your computer is from the standard time.

When to sync

For online flash sales, exam countdowns, log analysis and other time-sensitive tasks. If the offset exceeds 500 ms, enable automatic time sync on your device.

How to sync

Windows: Right-click the taskbar clock → Adjust date/time → turn on "Set time automatically".
macOS: System Preferences → Date & Time → check "Set date and time automatically".
Linux: sudo timedatectl set-ntp true, then restart systemd-timesyncd.