* Matthew Huff
I saw that, but it says the bits are set "before 23:59" on the day of insertion, but I was hoping that I could shut it down later than 23:59:59 of the previous day (8pm EST). The reason is FINRA regulations. We have to have the time synced once per trading day before the open according to the regulations.
Again AIUI, and I'm no NTP expert so I hope someone corrects me if I'm wrong: If you don't configure the "leapfile" ntpd option, the Leap Indicator flag will flow down to your servers from the stratum-1s servers you're synchronising from (directly or indirectly). So what I think you could do, is to on the 29th remove all your upstream servers from your NTP server's config, and set "fudge 127.127.1.0 stratum 3" or something like that so that clients will still want to sync to it. At that point, your NTP server's clock chip will be the reference clock, which might be drift-prone. To work around that, you could at 8pm on the 30th stop ntpd, manually sync the system clock with ntpdate, and start ntpd again. That should keep your NTP server's clock reasonably synchronised, that provides your clients with (a Leap Indicator-free) NTP service. I make no guarantees that the above will work the way I think it will, though... Try it at your own risk. Tore