Questions tagged [time]

Time is a dimension in which events can be ordered from the past through the present into the future, and also the measure of durations of events and the intervals between them.

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60 views

CRONTAB - Summer/Winder Time-Change

Since there can be problems with the time change from summer/winter or winter/summer, I wanted to ask how I could solve the problem within the bash script-2? I think in the winter time it should not ...
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Ububut 18.0.4 LTS:- unable to start TCP/UDP discard service on port 9 and time service on port 37

I have ubuntu client 18.0.4, I am unable to telnet localhost on port 9 and port 37. root@ubuntu:~# telnet 127.0.0.1 37 telnet: Unable to connect to remote host: Connection refused root@ubuntu:~# ...
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889 views

Sync ntp immediately at boot with undiciplined clock

I have setup one ntp server and 5 clients. I want to force sync the clients to server clock on boot. With my current ntp settings the computers are syncing but after several minutes. I cannot wait so ...
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chrony time server cannot synchronize with time servers from the internet

My chrony time server with the version: 3.5-6ubuntu6.2, can get the time from another internal time server but not from time servers on the Internet. Could you please help me to synchronize my chrony ...
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152 views

PPS Integration with chrony

I am trying to get chrony to ingest a PPS signal to compare against just an NTP server. The PPS signal is recognized when I do ppswatch and ppstest, but when I do chronyc sources, the LastRX field ...
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118 views

Windows Server VMs have incorrect time on boot (Esxi 6.7.0 Update 3)

We run ESXI 6.7.0 Update 3 (Build 14320388). The Windows 2019 VMs running on that host, when they boot, their time is incorrect. I have to manually open the Windows settings and set off and back on ...
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1k views

PowerShell: How to check a recurrent week time interval?

I need to create a PowerShell script, able to collect some data at each minute. However, this script cannot run during the "technical windows", that are scheduled to occur at the same week ...
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1answer
58 views

How to change time on local NTP server and distribute to others? [closed]

Is there any solution to retrieve time from a NTP server and change time locally (Increase or decrease) and then distribute new time to other servers? As an example, server retrieve UTC time and ...
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1answer
40 views

Linux DST - 25.10.2020 - change did not occur - old linux bug?

we have a strange problem on older linux kernel embedded devices that still uses /etc/tz and $TZ for setting the timezone and dst Our TZ variable has value: 'MET-1MEDT,M3.5.0,M10.5.0/03:00 And ...
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How to name a folder with today's date and time?

So i have this lil .bat setup @ECHO OFF echo %date% Copy D:\000Back\list.txt D:\111Back\ CD D:\111Back\ copy list.txt %date%_%time%.txt ECHO done PAUSE The second copy command never goes through, ...
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2answers
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Is it possible to have user time > wall time? [closed]

I have obtained the following results from executing a script: real 0m1.027s user 0m1.752s I understand that: Real time is the wall time. This is the time I would have obtained if I have measured ...
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805 views

Redhat Enterprise Linux 7: How to disable DST - Daylight Saving Time

We have 16 Linux RHEL 7.5 servers in a cluster and servers are sync with crony service to NTP server We have two questions How to know if DST is configured on our servers? How to disable the DST on ...
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Cannot query time of remote windows 10 host from Linux

I'm trying to check the current time on the machines on the network. On the Linux/Samba server, I can run net time -S $host or samba-tool time $host. But all Windows 10 hosts return an error: ...
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1answer
143 views

Centos Linux stuck in time

Has anyone seen the Linux time being stuck, it has been driving me nuts since yesterday. # date Thu Apr 2 16:35:04 UTC 2020 # date Thu Apr 2 16:35:04 UTC 2020 # date Thu Apr 2 16:35:04 UTC 2020 # ...
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1answer
875 views

Subsequent calls to WMIC return a localdatetime with a deviating timezone

The problem In our company environment we use several batch files which use WMIC to retrieve the current time. Usually to print it to log files, but also to include the timestamp in a file name. ...
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linux + understanding Chrony logs and conclusions from logs

we are using chrony service in order to sync linux clients to NTP server in our cluster since we get diff time between machines we enable the chrony logs to understand the reasons that machines in ...
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Centos NTP time skew alerts [duplicate]

I have a couple of NTP Stratum 2 servers, and these are in sync with a Stratum 1 GPS appliance, and also peered between them selves. I would be interested in creating a job, which will create an alert ...
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One RDP session time off by 6 minutes compared to server time

We have a customer with a Server 2008 R2 Remote Desktop Server. When we log onto the server via RDP as User1, the time in the RDP session matches the time of the server. When we log onto the ...
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345 views

Local GPS clock is marked as falseticker by ntpd — why?

I have a Linux NTP server with a ublox M8Q GPS module connected via GPIO (UART @ 9600bps and PPS). What I observe is that the local GPS source — SHM(0) — gets marked as falseticker and I'd like to ...
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1answer
128 views

Convert date and time from output

I have a file with date and time on a couple thousand lines. I need to convert: 2019/08/02-01:23:50+0000 To: 02/Aug/2019-01:23:50 +0000 I so far have th=`grep ...
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1answer
4k views

Why is the year in this ISO timestamp not 2019?

For a simple app I'm using to test a devops pipeline I'm outputting the start time of a build to the homepage. On my development machine the year of the ISO-8601 timestamp I expect, 2019, is printed (...
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Machines experience time offset despite chronyd service running

we have 3 machines in the cluster ( redhat 7.2 ) linux_machine1 linux_machine2 linux_machine3 the machines time are like this Sun Sep 1 13:54:20 UTC 2019 - linux_machine1 Sun Sep 1 13:34:15 UTC ...
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Manually change the time in CentOS 7 forwards and backwards

I want to do tests with some time based applications. I want to set the system time 3 days in the future or 5 years in the past. CentOS 7 is not allowing me to do this. Both commands below work, ...
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1answer
619 views

understanding windows time configuration

I wish to set external time source for all Vms and HyperVs in several domains. Most of the systems are windows Server 2012 R2 or Server 2016. I have been reading a lot of explanations and I somehow ...
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1answer
29 views

Local x Server processing time (only CPU)

I'm having some HUGE differences on running time when comparing local x server processes. Our laboratory has a dedicated server running Ubuntu 14 LTS as OS and PBS for Job scheduling. In total, there ...
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1answer
372 views

Inconsistent elapsed time for mysql/mariadb query

Checking the elapsed time for a database query for munin monitoring,I have created a script, the time measurement part being: start=$(sed 's/^0*//'<<< `date +%N`) /usr/bin/mysql -u 3da_d9 -p*...
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1answer
2k views

filtering event logs with specific TIME range of ANY day

How can I query windows server events between two times of any day? I have tried with PowerShell... Get-EventLog -Logname xxxx -After 04:00:00 -Before 04:00:30 ...but just returns today's events
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1answer
48 views

Server 2016 Session time limits for specific users

I am aware you can set session time limits for all idle/disconnected users on Server 2012/2016 etc, however I was wondering if there is a way to end disconnected/idle session only for some users and ...
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344 views

rsync --link-dest. Time to 'building file list" incrementing

I've been running rsync as a cygwin task on Windows Server 2008 for about two months now. I'm using the --link-dest option to do a daily 'snapshot' of the contents of a server containing about 10TB ...
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3answers
362 views

Properly setting date on Linux machines

I am trying to set the system date on my linux machine. If it matters, it is an Amazon EC2 machine that I provisioned. I tried to set the date with this command: sudo date -s "19 APR 2018 11:14:00"; ...
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2k views

Why did w32tm /resync cause it to correct itself, then overshoot?

Background: My LAN's Windows Server 2012 R2 Domain Controller had been running without any external time server for a few years and I finally synchronized it now. It had been running about 2 minutes ...
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How do I change the date in Google Cloud Container-Optimized OS?

I try to set date: sudo date -s "28 OCT 2018 15:00:00" but before I need to disable NTP timedatectl set-ntp false Google Cloud Container-Optimized OS doesn't have timedatectl util -bash: ...
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1answer
283 views

CRON messages being delayed for arbitrary long time in syslog

I found in a few servers's syslog that some of the CRON related messages are written in a wrong time, like the following: Aug 21 06:26:01 hty-controller CRON[30159]: (root) CMD ( python /.../...
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226 views

NTP does not update until after I poll it

I have NTP setup to run with GPSd and all is well. The issue arises after about a week of my raspberry pi being disconnected, NTP will trust the old date on the system clock. Since the GPS takes a ...
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2answers
925 views

linux system time temporally jumps

I saw a strange system time changing behavior in some (hardware) servers: in /var/logs/syslog, the date time preceding each log message sometimes change to a random one and gets back to normal in the ...
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4answers
18k views

Domain Controller time won't sync with NTP server

I'm having a problem with a domain controller which won't sync with a time server. I've tried everything I can think of and I've already googled many fixes, but nothing seems to work. This is a ...
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1answer
373 views

How to reduce “Connecting Time” reported by GTMetrix?

I've a cloud instance with Linode running CentOS 7.2, PHP 7.1, Nginx & Wordpress (latest version). 1 CPU + 2GB RAM. While checking GTMetrix stats, Connect time is showing as 127ms. I'm trying to ...
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Ubuntu Server 18.04 taking very long to boot up

I've installed Ubuntu Server 18.04 as a VM to use as a web server and it's taking very long to boot up. During the booting process 100 seconds go by without any notice of what's happening and then the ...
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2answers
752 views

How to do proper VPS timekeeping?

I'm configuring a VPS to log some time-series online data and I notice that the time is off. I'd like to have better than 10 second precision on this. I read somewhere that VPS timekeeping is ...
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1answer
28 views

Process start time and running time do not match

We have a situation where times present by START TIME and TIME presented by "ps" are not matching. When I say matching I mean - TIME shows that a service is running longer than it actually is. ...
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1answer
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Time on Windows servers out and won't stay corrected

I have a bunch of windows servers that are VM's running on a group of hypervisors, all in a domain environment. Its a mix of Server 2012 R2 and Server 2016 For some reason the clock is out by about 7 ...
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2answers
1k views

Why is my internal clock always 1.3 seconds off?

I ran w32tm /stripchart /computer:time.windows.com just for fun and found out that my clock is 1.3 seconds behind this timeserver. Not that I think Microsoft is wrong, but I tried it with various ...
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2answers
750 views

System time is off by up to hundreds of milliseconds despite NTP sync before boot

I'm running a couple of servers which need a pretty tight time sync (<50ms) as they are running a Paxos algorithm. The servers are running NTP and are successfully sync at one point. According to ...
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0answers
1k views

Samba4 AD Time Sync

I know this question is asked a lot, and I've googled for days, but none of the solutions I have found so far work. My problem is this: Windows 10 workstations are not syncing their time with my ...
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1answer
8k views

Windows Server 2012 R2 time resetting by 2 hours (-2 hours)

The server doesn't host any VMs and doesn't belong in a domain. In the Windows "Date and Time" settings, I have the correct time zone and set the correct time. But after some hours when I connect ...
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2answers
923 views

Chef-Server 12 Getting me errors when the node is not time synced

I'm getting this error when the clock on my node is different than 15 minutes from my chef server. Authentication Error: Failed to authenticate to the chef server (http 401). enter code here`...
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Changing Polling times on a VM running under Server2012 R2?

Is there a way to know or change the polling times of VMs running under a Hyper-V 2012 R2 server? We have set all the hosts and physical domain controllers to keep time with our new GPS time server ...
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67 views

How to read VMware interrupt backlog?

The VMware document titled "Timekeeping in VMware Virtual Machines" have the following referente to the issues with the time drift: If the virtual machine is running too slowly, perhaps as a result ...
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1answer
18k views

Docker - Timezones in containers not same as on host

In all my running docker containers the containers system time is set to UTC whereas on my host (debian) its CEST. Why dont they sync automaticly? How do i make them set the right time when bringing ...
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79 views

Windows Domain - Time period until User needs to re-authenticate to the Domain?

I run a Windows Domain (Server 2016) and was wondering how long is the default time that a user can still log in to his computer without having a connection to the domain controller? If the user is ...

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