How to add the timestamp in all panels in my dashboard

Hi, I would like to add the time in my panels for my dashboard. I have written the below xml code for it. Do i need to change it. How to call the token for other panels. I have gone through the documents for couldn't able to find the soution. Anyone please help me on it. XML code: XXX 1 2 3 4 5 6 | XXX 7 -5m 8 now 9 strftime(now(),"%m/%d/%Y %H:%M:%S") 10 1 11 1m 12 delay 13 14 15 16