Setting The Date Backwards

[Anthony_69]

Hi,

I currently have a data sensitive live HP UX system that is running at approximately 5 minutes ahead of what it should be.
Can someone advise me of the safest way to change the time backwards?

Thanks

[John Poff · Accepted solution]

Hi,

I would suggest setting up the NTP protocol to keep the time in sync.

JP

[Jeff Schussele]

Hi Anthony,

Use the date command as follows:

date -a -300

This will slowly slew the time backwards five minutes
NOTE the negative value on seconds.
This will not make time go backwards literally, it slows the the actual seconds until the slew value is reached. Perfectly safe.
Then you need to get an NTP server set up to keep time in line.

HTH,
Jeff

[Anthony_69]

Thanks guys. Seems to be working a treat. I did have it talking to an NTP server, however said server decided to go to sleep over the past couple of weeks

[Jeff Schussele]

Hi (again) Anthony,

300 seconds should take 2-4 hours to accomplish, so be patient.

Rgds,
Jeff