Hi Saravanamurthy,
Did you set ntp?For setting, login CLI > enable > configure > self or profile XXX
Syntax:
ntp server {autokey|key|maxpoll|minpoll|prefer|version}
ntp server {autokey}
ntp server {maxpoll [1024|2048|4096|8192]}
ntp server {minpoll [1024|128|256|512|64]}
ntp server {key <1-65534> md5 [0 |2|]}
ntp server {prefer version <1-4>|version <1-4> prefer}