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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Robocopy website deployment script log file name truncated in AM

This is an IIS website deployment script I started to write. It moves files from directory A to directory B and creates a log file with the date/time as the file name. When it's run in the AM hours, ...
6
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1answer
925 views

Time too quick in debian, 72 minutes pass in system date in one real world second

Having trouble with system date/time in GNU/Linux/Debian: Time goes too fast for date, time, cron. The sleep command works fine, file modification times are correct. The issue explained via commands: ...
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3answers
48k views

How do I force sync the time on Windows Server 2008 R2 Domain Controller?

What is the command to sync a Windows server domain controller to its configured time source?
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3answers
2k views

VMware: How to keep time in guest after suspend

I have Gentoo installed as guest OS. I have hardware clock synced with host system, but the clock of OS tend to be wrong after suspend. The only solution I find out is run hwclock -s frequently via ...
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2answers
2k views

Time Synchronization for Domain Controllers Virtualized Via Hyper-V

I would like to know if someone can recommend a better way to configure domain time synchronization for a group of Windows Server 2008 R2 servers than what I currently have configured. I have three ...
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1answer
237 views

modification time of file in future, but timezone is set correctly

Files that I am creating at a Unix server are created with a modification time that lies 5 days in future. But when I check with the date command, it seems, that timezone and date are set correctly. : ...
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1answer
550 views

Date / time out of sync by days

I have several 2003 servers in my domain that randomly change their date/time by several days, sometimes. They are all getting their time from an AD server acting as the primary DC. I have looked in ...
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1answer
1k views

Unix Timestamp in Apache Combined Log?

So basic question, but I can't seem to find an easy answer. How do I record the date/time in my apache logs to have a unix timestamp (seconds since epoch). I have the default LogFormat as: ...
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6answers
761 views

What consequences / implications can arise from a wrong system clock?

What issues can you think of that may arise from a wrong system clock setting ? Primarily interested in potential problems affecting servers and Linux or UNIX-like systems in particular. And how ...
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4answers
1k views

Best way to say “sync all system clocks to this server, when and ONLY when I say so?” Mixed setup of Windows+Linux servers

Title pretty much explains it. Let's say there's 100 servers, various versions of Windows and Linux, and one Windows server is the "master clock." I did look at this question: How do I synchronize ...
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3answers
469 views

Time cron not working

10 * * * * /usr/sbin/ntpdate pool.ntp.org >/dev/null 2>&1 The idea is to sync time every 10 minutes. However im waiting now for 15 minutes and nano /var/log/cron still returns ...
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2answers
2k views

How to sync time across Windows servers to the millisecond precision?

I really need to keep time tightly in sync between my Windows 2008 R2 servers and was expecting that Windows Time Service will do that... but sometimes difference between my clocks is over couple ...
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2answers
45 views

Store TIME in SQL

What is the correct way to store the TIME of day in SQL? Have a field that cares only when an action took place. Example values will be 2:30 PM or 14:30, it doesn't matter to me which. This ...
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1answer
102 views

Page response time in foreign countries

We are currently preparing to deploy our software in an non EU country. Any hints, how I can check response times from any country? Just to get a feeling when we have to use CDS and stuff...
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votes
1answer
312 views

How precise is cron?

Hey everyone. I am trying to set up a python script to query a DB for all updates over the past 5 minutes. Given the number of updates, it must be as precise as possible (our records are timestamped ...
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1answer
493 views

Correcting the server time on a Debian box - root user time already correct

Hey All, Got a box running Debian. I've set the root user time to the correct BST time. However, when I log in the server time and date which is shown is wrong: e.g. http://www.5bars.co.uk/time.png ...
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2answers
773 views

Virtual PC: Issues with clock when guest Linux has a different timezone to the host OS

I'm running Linux (Centos) under Virtual PC in Windows 7. Guest is set to a different time zone then host OS and none of them are UTC. The issue is that when guest boots its time is always set to ...
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3answers
2k views

Windows 2003 server time reset

We had a situation where the time on a Windows 2003 server was getting set back spontaneously. We discounted the possibility of another computer on the network acting as a time master and causing ...
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2answers
698 views

Can't set date on Debian Amazon EC2 isntance

I don't know if the fact that the server is an Amazon EC2 instance makes any difference, but I thought I should mention it. I'm trying to set the time to an incorrect time for testing reasons. The ...
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2answers
141 views

Why does my system clock differ across services?

I have my system clock set to UK time, which is currently +0100 (BST) I set this by symlinking the localtime file, as follows /etc/localtime -> /usr/share/zoneinfo/Europe/London The date ...
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1answer
569 views

How does find command sort results?

I have an old messy shell script. One of the steps executes find command with some parameters and expects the results to be sorted by creation time. It works well on old machines (find version is ...
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2answers
2k views

How do I troubleshoot root cause of a hung windows (2003) server?

I have a pair of Windows (2003 Server) servers both running MS SQL Server (2008 EE) that each hang every few months. This has been occurring intermittently :( for the past 15 months pretty much since ...
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2answers
514 views

Seemingly high clock skew between four systems, normal?

I'm researching a bit of a problem maintaining time synchronization between systems. I finally decided to measure the actual clock variance between hosts, and found that over the course of 13 hours, ...
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3answers
2k views

Exchange 2007 Move Database - How Long Is It Estimated to Take?

We are planning to move our Exchange DB to an EMC SAN (NS-120) with plenty of drive space from our 2007 Exchange server native storage which is getting low on space but not critically low on space ...
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1answer
709 views

What do negative numbers under TIME+ in htop mean?

What do the red negative numbers I'm seeing displayed in htop mean? Should I be worried?
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1answer
324 views

Need to Override Automatic Time Set on a Test Server [duplicate]

Possible Duplicate: Stop Active Directory from updating computer time and date I have a question similar to some others I've seen here. I have a development server running Windows Server ...
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1answer
392 views

Windows Server Cluster & Strange Day Light Savings Time Behaviour

Over the weekend (Sunday March 27th) Daylight Savings Time kicked in here in Ireland and so all the servers (all win2k3 server) in our Production Environment updated their Times +1 Hour. However ...
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2answers
4k views

System clock drifting out of sync with hwclock and ntpd

My current system drifts from the hwclock and ntpd dramatically. I've looked at many forums and posts online and on SF, but haven't found a suitable solution. Here is my ntpq -pn output: remote ...
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3answers
1k views

Stop Active Directory from updating computer time and date

This office runs an active directory on windows servers. Some 2003 DCs some 2008 R2 DCs A user (The QA analyst) requested that he is able to change his time and it not be changed back after 5-10 ...
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3answers
3k views

Allow Facebook access only in specific hours of the day with squid

I've been able to install squid on my Ubuntu Server with basic authentication and everything works perfectly. Recently the boss asked to block facebook access and I did it with no problems. Now it ...
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2answers
278 views

Odd behaviour of gettimeofday on RHEL5 server

I'm experiencing very odd behaviour from Time::HiRes on RHEL5. Since Time::HiRes is in the Perl standard installation, and is basically a wrapper around the gettimeofday system call, I'm inclined to ...
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1answer
1k views

Crontab : is there any log with begin and end time?

I have a lot of crontask on my linux servers for our applications. But I don't find any way to know when a task end, and how long it run. Must I add a soft like time command to log this? Is there any ...
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2answers
175 views

Reset kernel time (PLL/FLL)

ntp trys to adjust the kernel's time variables, in order to improve the performance of a free-running time. I am searching a way to reset these variables, but I can't find a programm/command to do ...
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2answers
72 views

throw memory to a process

I have a process that inserts 10 million records into a mysql db and is running on a linux box with (4 * 2.13GHz processors + 4 gigs of Memory ). Right now it takes ~2 hours to complete and I'm not ...
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1answer
4k views

System time is wrong in Proxmox VE host, how can I fix it?

I'm using the latest version of Proxmox VE (which is based on Debian) and I can't fix the wrong time problem: $ pveversion -v pve-manager: 1.7-11 (pve-manager/1.7/5470) running kernel: 2.6.32-4-pve ...
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3answers
392 views

Unix timestamp deviation

I have two Ubuntu servers which synchronize their timestamp to europe.pool.ntp.org every night. Just before they sync, I can see a difference of 4 seconds between the two servers. One of the servers ...
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1answer
771 views

Time difference between two machine clocks?

Is it possible to measure or some other way find out the difference in clock/time between two windows 2k8 r2 machines?
2
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1answer
236 views

Why does the time it takes to run this script differ so much between user and system and how I might correct the discrepancy?

My application sits behind a load balancer, and every once in a while I like to do a status check on each machine to get an idea of the time it takes to return an index.html document on each machine. ...
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2answers
231 views

Average response time

Im trying to find some benchmarks for average response time. We have 3 sites that have a response time between 5-7 seconds. They are US sites but their servers are located in the UK, could this have a ...
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2answers
125 views

Testing application timing

We've developed an in-house application, with several related crons that execute at some time during the day. These crons are designed in such a way that they make sure that they ignore, for example, ...
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3answers
3k views

CentOS 5 VPS - setting the date and time

I've just tried to set the timezone on my VPS to Europe/London: ln -sf /usr/share/zoneinfo/Europe/London /etc/localtime This was fine. However, the time is now wildly out: $ date Sat Feb 5 ...
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5answers
2k views

How does Windows handle Time? Updating RTC, etc. (Active Directory and Novell E-Directory)

I'm troubleshooting some time issues in my domain and before making any big changes I want to have a thorough understanding of what's going on. I've got a few lingering questions at the moment: What ...
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5answers
1k views

precise time synchronization of solaris servers with NTP over LAN / WAN

I have 2 servers on a LAN that I want to precisely synchronize. the goal is to have a time difference < 500 microseconds, constant, with no drift (from what I've found on the web, this is ...
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2answers
658 views

unix timestamp wrong time with rrdtools

I have problem with unix timestamp ( date +%s ). This command gives me a GMT time, however I am using CET, so the unix timestamp is in 1 hour late (and my rrdtool database too!). How I can change unix ...
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2answers
875 views

Format output from /usr/bin/time to ignore parts of seconds

I want to measure the elapsed time of a command, and show it without fractions of seconds no matter how little time it takes. For instance, /usr/bin/time -f "%E (real)" SOMECOMMAND might return ...
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2answers
475 views

SW clock drift problem

i got a problem: my linux software clock seems so have a big drift. In order to correct this (and to make ntpd work) I ran adjtimex. And adjtimex "meassured" a drift over -1700s/day and corrected this ...
2
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2answers
19k views

Windows 7 machines won't sync time

I configured my Windows Server 2008 box as an authoritative time server using the instructions here: http://support.microsoft.com/kb/816042 Port 123 is open for incoming and outgoing connections on ...
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7answers
4k views

Local or public NTP servers?

For a relatively large network (thousands of hosts) - what are the arguments for and against running a locally managed (pool of) NTP server(s) (perhaps periodically set via some public NTP server) and ...
10
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7answers
57k views

Why is ntpd not updating the time on my server?

I have ntpd running on my server. It's all the default settings, except I commented out its ability to be a server to other machines: # restrict -4 default kod notrap nomodify nopeer noquery ...
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votes
3answers
9k views

How can I compare an ntp server's time to my server's time?

I have ntpd running on a box. I want to see how the time on the box compares to the time retrieved from ntp.ubuntu.com. Is there an easy way to do this?