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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How can I sync time between two ubuntu computers, not connected to the internet

I have two computers connected to each other over an ad-hoc wifi. How can I make the first computer always sync to the time of the second computer? I tried playing with NTP, but could not figure out ...
2
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1answer
3k views

Why are my servers clock out of sync?

The domain time is now out of sync by 4 mins and its getting on my nerves, I ran a quick check to see if I could determine how much it was out by exactly and got this back: H:\>w32tm /stripchart ...
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1answer
334 views

changing timezone affects cron time

I have set up a cron to run at every 26th minute. $ crontab -l 26 * * * * date > /home/time.txt 2> /home/time_err.txt The current time shown by date command. $ date Thu Aug 25 23:26:00 CDT ...
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1answer
139 views

Checking the current time on an ESX server from the vSphere client

What is the easiest way to check the current time on an ESX server from a machine which has the vSphere infrastructure client installed on it ? In other words, is there any way to get the current ...
0
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1answer
890 views

Time problems on my Synology NAS 1511 running Busybox linux

I'm running a MS windows, using Netbeans 7. I occasionally get a problem when I hit save, "This file was modified externally, are you sure you want to overwrite" Further investigation has led me to ...
6
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1answer
125 views

Time taken for authentication to work again after changing system time

One of our domain controllers clock drifted way out of sync with the rest of the network (thanks to me forgetting to turn off VMWare's time synchronisation), which caused a whole bunch of servers to ...
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1answer
1k views

How time is affected by the ntpd and /etc/localtime

Can anyone explain how ntpd and /etc/localtime and system clock interact with each other, in UNIX or more specific in freeBSD? I'm giving the following long description of the concepts in case I ...
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2answers
307 views

Configuring time sync on domain

I have an AD domain (2 dcs single domain) and a number of member servers. I need to configure time synchronisation so that everything is in sync. There is a lot of fluff on this topic. Does anyone ...
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4answers
580 views

Getting time to sync with NTP on Centos 5 VM

My Centos 5 VM is drifting time. I have scoured different answers to solve this problem. I've looked at the VMWare's tips and added tinker panic 0 on top of my ntp.conf file. I also changed the ...
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2answers
869 views

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
947 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
60k 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
257 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
593 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
851 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
2k 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
497 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
3k 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
47 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
115 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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1answer
329 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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votes
1answer
504 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
819 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
719 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
142 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
575 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
3k 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
573 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
741 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
374 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 ...
5
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1answer
400 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
2k 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
293 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 ...
2
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1answer
2k 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
186 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 ...
0
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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 ...
0
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1answer
5k 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
420 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
833 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
239 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
233 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
134 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 ...