crontab at 2 o'clock in 2 days how?

Question

ubuntu

Question like this: I want crontab to restart the server in 2 days at 2am.
Is line
0 2/48 * * * /sbin/reboot
correct?)
Just when I looked at the info on crontab, I didn’t see anywhere that 2/48 was indicated. Is this true at all?

Answer 1

Just put the step in days:
0 2 */2 * *