timedatectl — Control the system time and date

Ubuntu下运行：

timedatectl set-local-rtc 1 --adjust-system-clock

或者Windows下运行：

Reg add HKLM\SYSTEM\CurrentControlSet\Control\TimeZoneInformation /v RealTimeIsUniversal /t REG_DWORD /d 1

参考如下：

timedatectl --help 的执行结果如下：

timedatectl [OPTIONS...] COMMAND ...

Query or change system time and date settings.

  -h --help                Show this help message
     --version             Show package version
     --no-pager            Do not pipe output into a pager
     --no-ask-password     Do not prompt for password
  -H --host=[USER@]HOST    Operate on remote host
  -M --machine=CONTAINER   Operate on local container
     --adjust-system-clock Adjust system clock when changing local RTC mode

Commands:
  status                   Show current time settings
  set-time TIME            Set system time
  set-timezone ZONE        Set system time zone
  list-timezones           Show known time zones
  set-local-rtc BOOL       Control whether RTC is in local time
  set-ntp BOOL             Enable or disable network time synchronization

更详细的参数解释：

能够识别的命令行选项如下：

--no-ask-password
在执行特权操作时 不向用户索要密码。

--adjust-system-clock
当使用 set-local-rtc 命令时， 若使用了此选项， 则表示根据RTC时间来更新系统时钟。 若未使用此选项， 则表示根据系统时钟来更新RTC时间。

--monitor
与 timesync-status 命令一起使用， 表示监视 systemd-timesyncd.service() 的状态并不断刷新输出。可以使用 Ctrl+C 终止监视。

-a, --all
显示全部的 systemd-timesyncd.service() 属性，无论这些属性是否已设置。

-p, --property=
仅显示指定的 systemd-timesyncd.service() 属性。若未指定任何属性则显示全部已设置的属性。 参数必须是一个例如 "ServerName" 这样的属性名称。 可以多次使用此选项，以显示多个属性。

--value
当使用 show-timesync 命令显示属性时， 仅显示属性的值(不显示"="与属性名称)。

-H, --host=
操作指定的远程主机。可以仅指定一个主机名(hostname)， 也可以使用 "username@hostname" 格式。 hostname 后面还可以加上 SSH监听端口(以冒号":"分隔)与容器名(以正斜线"/"分隔)， 也就是形如 "hostname:port/container" 的格式， 以表示直接连接到指定主机的指定容器内。 操作将通过SSH协议进行，以确保安全。 可以通过 machinectl -H HOST 命令列出远程主机上的所有容器名称。IPv6地址必须放在方括号([])内。

-M, --machine=
在本地容器内执行操作。 必须明确指定容器的名称。

-h, --help
显示简短的帮助信息并退出。

--version
显示简短的版本信息并退出。

--no-pager
不将程序的输出内容管道(pipe)给分页程序。

参考：http://www.jinbuguo.com/systemd/timedatectl.html

The following options are understood:

--no-ask-password
    Do not query the user for authentication for privileged operations.

--adjust-system-clock
    If set-local-rtc is invoked and this option is passed, the system clock is
    synchronized from the RTC again, taking the new setting into account. Otherwise, the
    RTC is synchronized from the system clock.

-H, --host=
    Execute the operation remotely. Specify a hostname, or a username and hostname
    separated by "@", to connect to. The hostname may optionally be suffixed by a
    container name, separated by ":", which connects directly to a specific container on
    the specified host. This will use SSH to talk to the remote machine manager instance.
    Container names may be enumerated with machinectl -H HOST.

-M, --machine=
    Execute operation on a local container. Specify a container name to connect to.

-h, --help
    Print a short help text and exit.

--version
    Print a short version string and exit.

--no-pager
    Do not pipe output into a pager.

The following commands are understood:

status
    Show current settings of the system clock and RTC, including whether network time
    synchronization is on. Note that whether network time synchronization is on simply
    reflects whether the systemd-timesyncd.service unit is enabled. Even if this command
    shows the status as off, a different service might still synchronize the clock with
    the network.

set-time [TIME]
    Set the system clock to the specified time. This will also update the RTC time
    accordingly. The time may be specified in the format "2012-10-30 18:17:16".

set-timezone [TIMEZONE]
    Set the system time zone to the specified value. Available timezones can be listed
    with list-timezones. If the RTC is configured to be in the local time, this will also
    update the RTC time. This call will alter the /etc/localtime symlink. See localtime(5)
    for more information.

list-timezones
    List available time zones, one per line. Entries from the list can be set as the
    system timezone with set-timezone.

set-local-rtc [BOOL]
    Takes a boolean argument. If "0", the system is configured to maintain the RTC in
    universal time. If "1", it will maintain the RTC in local time instead. Note that
    maintaining the RTC in the local timezone is not fully supported and will create
    various problems with time zone changes and daylight saving adjustments. If at all
    possible, keep the RTC in UTC mode. Note that invoking this will also synchronize the
    RTC from the system clock, unless --adjust-system-clock is passed (see above). This
    command will change the 3rd line of /etc/adjtime, as documented in hwclock(8).

set-ntp [BOOL]
    Takes a boolean argument. Controls whether network time synchronization is active and
    enabled (if available). This enables and starts, or disables and stops the
    systemd-timesyncd.service unit. It does not affect the state of any other, unrelated
    network time synchronization services that might be installed on the system. This
    command is hence mostly equivalent to: systemctl enable --now
    systemd-timesyncd.service and systemctl disable --now systemd-timesyncd.service, but
    is protected by a different access policy.

    Note that even if time synchronization is turned off with this command, another
    unrelated system service might still synchronize the clock with the network. Also note
    that, strictly speaking, systemd-timesyncd.service does more than just network time
    synchronization, as it ensures a monotonic clock on systems without RTC even if no
    network is available. See systemd-timesyncd.service(8) for details about this.