<1>\u67e5\u770b\u670d\u52a1\u5668\u65f6\u95f4<\/p>\n
\u683c\u5f0f:date +FORMAT \u00a0\/\/\u6839\u636e\u6307\u5b9a\u683c\u5f0f\u663e\u793a\u5f53\u524d\u65f6\u95f4.<\/p>\n
\u5e38\u7528FORMAT<\/p>\n
%Y \u00a0\/\/YYYY\u683c\u5f0f\u7684\u5e74\u4efd(Year)<\/p>\n
%m \u00a0\/\/mm\u683c\u5f0f\u7684\u6708\u4efd(month),01-12<\/p>\n
%d \u00a0\/\/dd\u683c\u5f0f\u7684\u65e5\u671f(day),01-31<\/p>\n
%H \u00a0\/\/HH\u683c\u5f0f\u7684\u5c0f\u65f6\u6570(Hour),00-23<\/p>\n
%M \u00a0\/\/MM\u683c\u5f0f\u7684\u5206\u949f\u6570(Minute),00-59<\/p>\n
%S \u00a0\/\/SS\u683c\u5f0f\u7684\u79d2\u6570(Second),00-59<\/p>\n
%F \u00a0\/\/YYYY-mm-dd\u683c\u5f0f\u7684\u5b8c\u6574\u65e5\u671f(Full date),\u7b49\u540c\u4e8e%Y-%m-%d<\/p>\n
%D \u00a0\/\/YYYY\/mm\/dd\u683c\u5f0f\u7684\u5b8c\u6574\u65e5\u671f,\u7b49\u540c\u4e8e%Y\/%m\/%d<\/p>\n
%T \u00a0\/\/HH:MM:SS\u683c\u5f0f\u7684\u65f6\u95f4(Time),\u7b49\u540c\u4e8e%\uff28:%M:%S<\/p>\n
%w \u00a0\/\/\u661f\u671f\u51e0,0-6,0\u8868\u793a\u661f\u671f\u5929<\/p>\n
%u \u00a0\/\/\u661f\u671f\u51e0,1-7,7\u8868\u793a\u661f\u671f\u5929<\/p>\n
<\/p>\n
<2>\u8bbe\u7f6e\u65f6\u95f4<\/p>\n
date mmddHHMMYYYY (eg:date 122111152015,\u8bbe\u7f6e\u65f6\u95f4\u4e3a2015\u5e7412\u670821\u65e511\u70b915\u5206)<\/p>\n
[root@sqj2015 ~]# date<\/p>\n
Sun Dec 20 22:15:51 EST 2015<\/p>\n
[root@sqj2015 ~]# date 12211152015<\/p>\n
Mon Dec 21 11:15:00 EST 2015<\/p>\n
date\u4fee\u6539\u7684\u662f\u7cfb\u7edf\u65f6\u95f4,\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u6765\u5b8c\u5584\u6216\u91cd\u7f6e\u56de\u539f\u6765\u7684\u65f6\u95f4<\/p>\n
hwclock –hctosys \u00a0\u00a0\u00a0\/\/\u4ee5\u786c\u4ef6\u65f6\u95f4\u6821\u6b63\u7cfb\u7edf\u65f6\u95f4<\/p>\n
hwclock –systohc \u00a0\u00a0\/\/\u4ee5\u7cfb\u7edf\u65f6\u95f4\u6821\u6b63\u786c\u4ef6\u65f6\u95f4<\/p>\n
<\/p>\n
<3>\u67e5\u770b\u53ca\u8bbe\u7f6e\u65f6\u533a<\/p>\n
<\/p>\n
\u8fd9\u91cc\u6709\u4f60\u6709\u6ca1\u53d1\u73b0,\u6211\u4eec\u67e5\u770b\u548c\u4fee\u6539\u65f6\u95f4\u7684\u65f6\u533a\u5747\u662fEST.<\/p>\n
\u67e5\u770b\u5f53\u524d\u4f7f\u7528\u7684\u65f6\u533a:<\/p>\n
[root@sqj2015 ~]# cat \/etc\/sysconfig\/clock<\/p>\n
ZONE=”America\/New_York”<\/p>\n
\u8fd9\u91cc\u53d1\u73b0\u8fd9\u4e2a\u65f6\u533a\u91c7\u7528\u7684\u662f\u7f8e\u56fd\u65f6\u95f4,\u6240\u4ee5\u4f60\u524d\u9762\u53ca\u65f6\u505a\u4e86\u65f6\u95f4\u540c\u6b65,\u6216\u8005\u65f6\u95f4\u4fee\u6539,\u5b83\u540c\u6b65\u548c\u4fee\u6539\u7684\u90fd\u662f\u5bf9\u5e94\u7f8e\u56fd\u65f6\u95f4\u7684.\u5982\u4e0b:<\/p>\n
[root@sqj2015 ~]# date<\/p>\n
Sun Dec 20 22:15:51 EST 2015<\/p>\n
[root@sqj2015 ~]# date 12211152015<\/p>\n
Mon Dec 21 11:15:00 EST 2015<\/p>\n
\u663e\u793a\u7684\u8fd8\u662f\u7f8e\u56fd\u65f6\u95f4(EST).<\/p>\n
\u4e5f\u53ef\u4ee5\u4f7f\u7528:<\/p>\n
[root@sqj2015 ~]# date -u<\/p>\n
Mon Dec 21 03:15:04 UTC 2015 \u00a0\u00a0\/\/\u6765\u663e\u793aUTC\u65f6\u95f4<\/p>\n
<\/p>\n
\u82e5\u4f5c\u4e3a\u4e2d\u56fd\u7528\u6237,\u600e\u4e48\u4f7f\u65f6\u95f4\u4e0e\u672c\u5730\u65f6\u95f4\u540c\u6b65\u5462?<\/p>\n
\u8fdb\u5165\/usr\/share\/zoneinfo\u76ee\u5f55,\u53ef\u4ee5\u770b\u5230\u5f88\u591a\u65f6\u533a\u6587\u4ef6,\u6211\u4eec\u9009\u62e9(shanghai)\u4e3a\u4e2d\u56fd\u65f6\u533a.\u5177\u4f53\u64cd\u4f5c\u5982\u4e0b:<\/p>\n
(1)\u5148\u5220\u9664\u65e7\u7684\u65f6\u533a\u914d\u7f6e: rm \/etc\/localtime<\/p>\n
(2)\u8f6f\u94fe\u65b0\u7684\u65f6\u533a\u914d\u7f6e:ln -s \/usr\/share\/zoneinfo\/Asia\/Shanghai \/etc\/localtime<\/p>\n
\u518d\u6b21\u67e5\u770b<\/p>\n
[root@sqj2015 ~]# date<\/p>\n
Mon Dec 21 11:34:57 CST 2015<\/p>\n
\u662f\u4e0d\u662f\u5df2\u7ecf\u4e0e\u4e2d\u56fd\u65f6\u95f4\u540c\u6b65\u4e86.<\/p>\n
<\/p>\n
<4>\u5b89\u88c5NTP\uff0c\u8fdb\u884c\u540c\u6b65\u65f6\u95f4<\/p>\n
#yum -y install ntp<\/p>\n
\u7136\u540e\u6267\u884cntpdate pool.ntp.org\u547d\u4ee4\u540c\u6b65.<\/p>\n","protected":false},"excerpt":{"rendered":"