register time with a vibration sensor

Hi!im trying to do a device that records the exact time and day when a vibration sensor is activated! Im going to use Arduino nano and a vibration sensor. I think i have to use a Real time clock also. Can someone give me some tips on how to do this??

Best regards

Start by learning how to use the vibration sensor and be able to detect the vibrations of interest.
Then look into the Time library and learn how to set and read the time. If that is not accurate enough for your purposes, then an RTC will be necessary. There are tutorials and examples for all of these on the web.