hwclock 同步时间

To synchronize the time using hwclock, you can follow these steps:

Open a terminal or command prompt.
Check the current system time with the date command. Note down the current time.
Run the following command as root or with sudo privileges to synchronize the hardware clock with the system time:
```
hwclock --systohc
```
This command will set the hardware clock to the current system time.
Verify the synchronization by running the following command:
```
hwclock --show
```
This command will display the current hardware clock time.
Check the system time again with the date command to ensure that it matches the hardware clock time.

By synchronizing the hardware clock with the system time using hwclock, you can ensure that both clocks are set correctly