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chrony is an implementation of the NTP (Network Time Protocol). It has some advantages against the standard ntpd (= Network Time Protocol daemon).

1. chrony can synchronize to the timeserver much faster than NTP. This is good for laptops or desktops that don’t run constantly.
2. It can compensate for fluctuating clock frequencies, such as when a host hibernates or enters sleep mode, or when the clock speed varies due to frequency stepping that slows clock speeds when loads are low.
3. It handles intermittent network connections and bandwidth saturation.
4. It adjusts for network delays and latency.
5. After the initial time sync, chrony never steps the clock. This ensures stable and consistent time intervals for system services and applications.
6. chrony can work even without a network connection. In this case, the local host or server can be updated manually.