Date and Time

Show Date and Time

[root@myserver ~]# date
Thu Mar 21 14:31:59 ICT 2013

Date Configuration

Change the current date.

[root@myserver ~]# date +%D -s YYYY-MM-DD

YYYY a four-digit year
MM a two-digit month
DD a two-digit day of the month

Change the current time.

[root@myserver ~]# date +%T -s HH:MM:SS

HH hour (00..23)
MM minute (00..59)
SS second (00..59)

Change date and time from remote server

1. Verify that NTP Server has ntpd service is running

   [root@ntpserver ~]#  service ntpd status
   ntpd is stopped
   [root@ntpserver ~]#  service ntpd start
   Starting ntpd:                                             [  OK  ]
   [root@ntpserver ~]#  service ntpd status
   ntpd (pid  28436) is running...
     

2. Firstly, check whether the selected NTP server is accessible

   [root@myserver ~]# ntpdate -q ntpserver_address/hostname
     

3. When you find a satisfactory server, run the ntpdate command followed by one or more server addresses

   [root@myserver ~]# ntpdate ntpserver_address/hostname [ ... ]
     

4. In most cases, these steps are sufficient. Only if you really need one or more system services to always use the correct time, enable running the ntpdate at boot time

   [root@myserver ~]# chkconfig ntpdate on
     

---

Refer to:	redhat.com: Date and Time Configuration