Month: February 2016

How to Change Timezone in CentOS

You check the time from the command line (run date), and find that the timezone is set to UTC or some other timezone. How do you get this changed?
To change this you have to have root access to the server.

There are a series of time zone files located at /usr/share/zoneinfo. Select the appropriate named timezone for your location. For my location I would need , Kolkata, Asia.

Make note of the appropriate folder and file for your timezone. The active timezone used on your system is in the /etc/localtime file.

First, make a backup of the existing localtime file. It’s always safe to make backups of original config files.

sudo mv /etc/localtime /etc/localtime.bak_01012015

Next, create the link:

sudo ln -s /usr/share/zoneinfo/Asia/Kolkata /etc/localtime

To test your change run the date command. You will see the new time.

Timezone issue with cron

If your cron job timing does’t match with the server time zone for example. You have set the cron to run at 12:30 PM, but when you see the cron log the time show say 3:40 PM. So to run your cron job as per your time zone Say if you are in India, your cron job should run as per Indian time. So you have to add the following line before your cron job line.

CRON_TZ=”Asia/Kolkata” ## This is the important line
03 18 * * * wget http://www.abc.com/test.php >> /var/www/html/abc/logs/test-`date +\%Y\%m\%d`.log

`date +\%Y\%m\%d` => This will create the log as per date month and year wise. Date format enclosed by tick (`) sign