I re-read your first post and I noticed that you stated
but i not get display of date after 5min
well... with your crontab entry most likely you don't get the output after 5 minutes, but at 5 minutes of the next hours, for example at 6:05, 7:05, 8:05 and so on. If you really want to run the cron job every 5 minutes you can use the syntax
This is the same as specifying all the 5 minutes steps: 0,5,10,15,20,25,30,35,40,45,50,55. Maybe this is what you were looking for. See man 5 crontab
for future reference.