Cluster Log Records Showing Different Time Than OS Time on 19c RAC

 Problem:

On OS the time is showing 16:00 while the Clusterware and DB logs time are showing 20:00

OS Time

 

Cluster's Log Time:

 

Analysis:

The configured timezone in the cluster environment config file was different from the OS timezone:

OS Timezone: is UTC

# cat /etc/sysconfig/clock

Cluster Timezone: is Dubai

# cat $GRID_HOME/crs/install/s_crsconfig_nodex1_env.txt

 

Solution:

change the Cluster timzone to be similar to OS timezone:

# vi $GRID_HOME/crs/install/s_crsconfig_nodex1_env.txt

Note: The clusterware and DB logs will pick the new timezone once you restart the clusterware.