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Full Discussion: Auto NTP Time Synchronization
Operating Systems Linux Red Hat Auto NTP Time Synchronization Post 302581523 by Corona688 on Tuesday 13th of December 2011 10:17:13 AM
Old 12-13-2011
That's almost exactly what we have, except instead of syncing every night at 4am, we do so every boot.

Generally there's no such thing as an 'EST time server'. Your system clock is supposed to be set to time zone 0, Greenwich mean time, and the local time zone controlled by the TZ variable, or a profile file, or other means. If your admin set the clock itself to local time, I'm not sure what to do.

---------- Post updated at 09:17 AM ---------- Previous update was at 09:10 AM ----------

Actually I do know what to do. Run ntpdate -q pool.ntp.org and see if it wants to advance the time 9 hours or something crazy, or whether it's just off by minutes or seconds. -q tells it not to set the time, just query.
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LEARN ABOUT OPENSOLARIS

systemd-timesyncd.service

SYSTEMD-TIMESYNCD.SERVICE(8)				     systemd-timesyncd.service				      SYSTEMD-TIMESYNCD.SERVICE(8)

NAME

       systemd-timesyncd.service, systemd-timesyncd - Network Time Synchronization

SYNOPSIS

       systemd-timesyncd.service

       /lib/systemd/systemd-timesyncd

DESCRIPTION

       systemd-timesyncd is a system service that may be used to synchronize the local system clock with a remote Network Time Protocol server. It
       also saves the local time to disk every time the clock has been synchronized and uses this to possibly advance the system realtime clock on
       subsequent reboots to ensure it monotonically advances even if the system lacks a battery-buffered RTC chip.

       The systemd-timesyncd service specifically implements only SNTP. This minimalistic service will set the system clock for large offsets or
       slowly adjust it for smaller deltas. More complex use cases are not covered by systemd-timesyncd.

       The NTP servers contacted are determined from the global settings in timesyncd.conf(5), the per-link static settings in .network files, and
       the per-link dynamic settings received over DHCP. See systemd.network(5) for more details.

       timedatectl(1)'s set-ntp command may be used to enable and start, or disable and stop this service.

FILES

       /var/lib/systemd/timesync/clock
	   This file contains the timestamp of the last successful synchronization.

SEE ALSO

       systemd(1), timesyncd.conf(5), systemd.network(5), systemd-networkd.service(8), timedatectl(1), localtime(5), hwclock(8)

systemd 237													      SYSTEMD-TIMESYNCD.SERVICE(8)
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