Ruijie>enable 

Ruijie#configure terminal                       			------>enter global configuration mode

CCF(config)#**clock timezone bogota -5**					------>set timezone to UTC -5		
			
00:08:25:40: %SYS-5-CLOCKUPDATE: Set time zone: bogota (GMT-05:00)
Set time zone: bogota (GMT-05:00)
       

Ruijie(config)#exit

Ruijie#clock set 18:00:00 12 3 2013             			------>set clock in format "hh:mm:ss month day year"

Ruijie(config)#end

Ruijie#write                                    			------>double confirm and save configuration


--------------------------

CCF# **clock set 18:55:00 09 17 2020**

00:08:27:42: %SYS-5-CLOCKUPDATE: Set system clock: 18:55:00 bogota Thu, Sep 17, 2020
Set system clock: 18:55:00 bogota Thu, Sep 17, 2020

Ruijie#show clock  

Ruijie(config)#**end**

Ruijie#**write **                                   			------>double confirm and save 

configuration