How to modify the system time in Linux

[Kalanidhi]

Hi all,

I am using Linux command based operating system. I ma very new in this OS. It is very secure operating system and i like it. But i find one issue in this, that i am not able to modify the system date and time in this system . Please help. Thanks in advance.

[Dr. V]

If you want to modify Linux system date, you can use the date command time
Time is set to May 10, 2009 order is as follows:

# date-s 05/10/2009

The system time set to 10:18:00 the command is as follows.

# date-s 10:18:00

Please reply if you found any issue.

[SalVatore]

You can also modify the time zone by below commad: Locate the appropriate time zone file / usr / share / zoneinfo / Asia / Shanghai to replace the current / etc / localtime.

Modify / etc / sysconfig / clock file says:
ZONE = "Asia / Shanghai"
UTC = false
ARC = false

Check and reply.

[jesse]

Date command function is to display and set the system date and time. Enter date see the current system time. Modified need to date - features character modifications. Command meaning of each option are as follows:
-d datestr, - date datestr show the date described by the datestr -sdatestr, - set datestr to set the date datestr Description-u, - universal display or set the Universal Time temporal

% H hour (00 .. 23)
% I hour (01 .. 12)
% k hour (0 .. 23)
% l hour (1 .. 12)
% M minutes (00 .. 59)
% p shows AM or PM
% r Time (hh: mm: ss AM or PM), 12 Xiao Shi
% s from January 1, 1970 00:00:00 to the current experience of the number of seconds
% S seconds (00 .. 59)
% T time (24 hour clock) (hh: mm: ss)
% X shows the time format (% H:% M:% S)
% Z time zone date of the domain
% a few weeks short (Sun.. Sat)
% A full name of the week (Sunday.. Saturday)
% b abbreviated month (Jan.. Dec)
% B full name of the month (January.. December)
% c Date and time (Mon Nov 8 14:12:46 CST 1999)
% d month of the first few days (01 .. 31)
% D date (mm / dd / yy)
% h and% b option is the same as
% j the first days of the year (001 .. 366)
% m month (01 .. 12)
% w the first few days a week (0 for Sunday)
% W the first few weeks of the year (00 .. 53, on Monday for the first day)
% x shows the date format (mm / dd / yy)
% y last two digits of year (1999 99)
% Y year (example: 1970,1996, etc.)

Check and reply.

[Lillebror]

The format of the specified display time is like:.

$ Date '+ This date now is =>% x, time is now =>% X, thank you!'
This date now is => 11/12/09, time is now => 17:53:01, thank you!
Example 2: Using a predefined format and displays the current time.
# Date
Fri Nov 26 15:20:18 CST 2009

Set time to 14:36 pm.
# Date-s 14:36:00
Fri Nov 26 14:15:00 CST 2009
Example 4: Set the time to November 28, 2009
# Date-s 991128
Sun Nov 28 00:00:00 CST 2009

All the best.

[Calvin K]

You can also synchronization bios time. BIOS clock synchronization to force the system time to write CMOS, the command is as follows:

# clock-w

Example:

 Set the time-ind at 12:00 on August 8, 2008
# Date-s "2008-08-08 12:00:00"

Modify finished, remember the type: clock-w. Time to write the system CMOS