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Questions tagged [time-synchronization]

257 questions
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Windows server time keeps setting the time 2 hours back

Our Windows 2012 server keeps setting its system clock 2 hours back. I've tried to run 'w32tm /resync' a couple of times but that does only works on short term. the server manager gives an Error with ID 36 and the following description: The time…
MickBoe1
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Synchronizing RODCs to NTP servers?

I've read this nice article from Gareth Hooper regarding Domain Controller syncing to external time sources. In essence, he wrote that although Microsoft don't actually condone the practice, it's a good idea to pre-configure all DCs (especially the…
pepoluan
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ntp server that syncs with other ntp servers but supplies a modified utc

Question We need to create an ntp server that syncs against other ntp servers but gives its client a modified utc. For example, it will receive utc 5:17 pm but it's clients will receive utc 7:17pm. Current situation/problem I'll describe the current…
WolfThreeFeet
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Windows Time Service OS Compatibility

Some of our servers have Domain Time II on them but we are having to make the possible decision to buy over 100+ licenses for Domain Time II or enable the windows time service. The installation of Domain Time II was done a few years before I arrived…
Patrick
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Should I timesync against PDC Emulator or NTP timesource? (PDC not in hub)

I know the best practice would be to have the PDC Emulator to sync against an external NTP time source, and have all other domain controllers sync against the PDC Emulator. However, my network layout is... 'interesting', to say the least. My company…
pepoluan
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Domain Time Issue

I have 2 DC's. One is virtual, one is physical. The time on my domain is running fast. I suspect this is due to one of the DC's being virtual. How can I set the domain to use the physical DC as the time master? Edit: I mean the domain time is in…
me2011
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How to synchronize windows server date/time?

I administer multiple Windows servers. One issue I have is that the time gets out of sync, and this becomes noticeable over a week or so. For example, my app server system time could be different from my database server time. What can I do to…
Fsfvcxc
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ntpdate ignores my timezone

I'm trying to set up time sync on a CentOS 5.5 VDS but can't figure out why it won't update to the correct timezone. e.g. After manually setting the correct date and time when I run this: date && ntpdate au.pool.ntp.org && date I get this: Mon Oct…
John Gardeniers
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Windows 2008 R2 Time Sync Between DCs

Our domain has three domain controllers, two of which are Windows 2008 R2, with a third that runs 2003 R2. DC1 (2008 R2, PDC Emulator, Syncs with external time source) DC2 (2008 R2) DC3 (2003 R2) According to w32tm /monitor DC2 is currently…
Bryan
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Amazon EC2 instances changes server time/date on reboots and other time weirdness

I have a windows instance up in EC2. I manually set the timezone to Pacific. 1) For some reason using window's built in time sync doesn't work in the instance...but whatever. I turn off automatic time syncing... but 2) On reboot the time on the…
puffpio
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Problem with time syncronization in client machine

The company I work for still uses Windows 2000 Server for most, if not all of its infrastructure. I recently joined my Vista laptop to the domain and noticed the system clock jumped ahead by an hour. I know the cause of this is because the time is…
Kenneth Cochran
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Accurate DateTime synchronization for Workstations?

How do I synchronize and ensure that the workstations have accurate DateTime synchronized when needed? We have to change workstation date-time for testing some apps. How do I ensure back original date-time with accuracy? I've heard there are some…
s_ruchit
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Windows Server Time-Service jumps into the future and (partially) back

This looks like the same issue as Windows Server 2022 Time Service Jumping into the future. I've also added a support ticket at Microsoft (Feedback Hub) for the issue: https://aka.ms/AAkwnpl As the system clock is essential for correctly working…
simendsjo
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What is the packet count in timedatectl timesync-status command

I am trying to understand the output from the timedatectl timesync-status with an example shown below: Server: 91.149.91.123 (ntp.ubuntu.com) Poll interval: 32s (min: 32s; max 34min 8s) Leap: normal Version: 4 Stratum: 2 Reference:…
Tony.H
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Decentralized NTP in network with only sporadic internet connectivity?

I have a (most of the time) isolated network consisting of several computers. computer 0 -- external NTP server / switch -- computer 1 -- external NTP server \ computer n -- external NTP server Only a small…
Bloops
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