CentOS 7 时区、日期时间查看以及设置杂烩

网络时间协议 NTP(Network Time Protocol)


yum install ntp


ntpdate cn.pool.ntp.org

Timedatectl 命令

查看当前时区、日期、时间状态 timedatectl [status]

Local time: Tue 2017-10-31 15:08:42 CST
Universal time: Tue 2017-10-31 07:08:42 UTC
RTC time: Tue 2017-10-31 15:08:42
Time zone: Asia/Shanghai (CST, +0800)
NTP enabled: yes
NTP synchronized: yes
RTC in local TZ: yes
DST active: n/a

Timedatectl 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             Control whether NTP is enabled


# 设置时区
timedatectl set-timezone Asia/Shanghai

# 本地时间写入硬件时钟
timedatectl set-local-rtc 1

# 开启 NTP 同步
timedatectl set-ntp 1

# 设置时分秒
timedatectl set-time 13:12:12

# 设置年月日
timedatectl set-time 2017-10-29 # 执行后,时分秒变成 00:00:00

# 设置年月日时分秒
timedatectl set-time '2017-10-29 14:12:12'

timedatectl 使用 set-time 设置时间时,timedatectl 的 ntp 需要为关闭状态


ln -s /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
clock -w
date -s 13:12:12
date -s 2017-12-12
date -s '2017-11-11 11:11:11'
本作品采用知识共享署名-非商业性使用-禁止演绎 4.0 国际许可协议进行许可。

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