Time is an element of the overall measurement system of for space. Time can refer to the time it is now, according to timing devices, the interval between two events, the duration of an event, or the sequence of events.

learn more… | top users | synonyms

5
votes
1answer
123 views

How can I have a secondary clock show in 24-hour time but the primary one in 12-hour time?

Is it possible to have only one of my secondary clocks display in 24-hour time while the other two clocks display in 12-hour time? If so, how? I would find this useful for dealing with UTC time. ...
2
votes
1answer
310 views

How to schedule a task to execute 9000 seconds from now on?

I have a batch script that executes a few Python scripts and then needs to schedule the last Python script to be executed 9000 seconds later. Here's what I have so far: (I only know how to manually ...
51
votes
5answers
7k views

Are CPU clock ticks strictly periodic?

Is the frequency of a CPU a mean value of about how many clock ticks there are in a second or does it have a more strong, physical stability? In my opinion, it must be not stable nor unstable. So ...
0
votes
2answers
105 views

How to find files created between hh:mm and HH:MM for any day?

For instance, find all files created between 20:00 and 23:30 for any day (not a specific day)? been going through man find and didn't see anything that would do this. Would I have to write my own ...
3
votes
0answers
136 views

How to get steady time on an Atmel xPlained SAMA5D3

I'm running Debian Jessie from an sdcard on an Atmel xPlained SAMA5D3 SBC. I have a python program which samples another device via serial line. Said device has a pretty reliable 20s countdown clock. ...
-1
votes
1answer
42 views

What is the output of time command in Linux

0m0.043s This is what is obtained out of time command in Linux. Is that 0.043 milliseconds or 0.043 seconds?
-1
votes
1answer
475 views

What are CPU time, user time, system time respectively?

I find someone asked a similar question, but my problem is NOT user-cpu-time, but user time vs system time vs cpu time. For example, the following info is what I got after a simulation on Linux: User ...
0
votes
1answer
90 views

Disable system time synchronisation

My system clock (which I can modify in UEFI) is working OK, but three hours behind me. It's always UTC+00, and changing it is useless because it often resets when my notebook runs out of battery. I ...
1
vote
1answer
689 views

NTP Stratum Inaccuracy [closed]

We're gearing up to have an argument regarding NTP stratum as an indicator of time accuracy. The statement that started the whole thing was: Stratum 5 can be four minutes off. My understanding ...
0
votes
1answer
55 views

Linux ntpd service does not appear to be working

I’m running this flavor of Linux on identical machines … [dalvarado@machine2 ~]$ uname -a Linux mydomain.org 3.10.32-35.201.amzn1.x86_64 #1 SMP Thu Aug 14 22:00:02 UTC 2014 x86_64 x86_64 x86_64 GNU/...
2
votes
2answers
567 views

Is there a way to find out how long a tab has been open, or when a tab opened?

I'm trying to find a way to show how long a particular tab has been open in Firefox. Alternatively, finding out when a tab was opened would work as I could calculate the open time myself. I'm willing ...
0
votes
1answer
482 views

GPS without PPS vs. GPS with PPS vs. NTP

With which time synchronization method I can achieve more accuracy to the absolute UTC time? I use GPS with PPS for now but I want to compare these sources. Assume the following items: Internet is ...
0
votes
1answer
1k views

NTPD not updating time date on CENTOS

I have set up ntpd on CENTOS, I am trying to get it to pull time from a Windows domain contoller if i run the command: ntpdate dc3.mydomaain.local this works fine and updates the host with the ...
2
votes
2answers
122 views

Can NTP be set to load a time from file in case it can't load from network?

I've looked at the documentation but can't find anything like this. The situation is that I have a BeagleBone Black which does not have a real clock. By default, the computer boots up thinking it's ...
3
votes
0answers
239 views

Sync PC Time off Android Device

Is there any way to set the time of a Windows PC by querying an (unrooted) Android phone on the same LAN? IE, net time \\computer_name /set /y but with an Android device as the time source. As in ...
0
votes
0answers
3k views

An error occurred while Windows was synchronizing with

Trying to get my time synced properly and I run into this error every single ntp server I use. I've got my firewall disabled, every single port open in my router (UDP and TCP), and I've used several ...
-1
votes
1answer
546 views

Is it possible to slow down system clock? [duplicate]

I'm playing a game that is using JavaScript to get system time, and I need the best time in the game I can get, I tried Cheat Engine but, as I said game uses JavaScript, so it is of no help to me. I ...
0
votes
1answer
573 views

Windows NTP Client Not Syncing with my ESXi NTP Server

I have an ESXi 5.1 server configured as a NTP server and a local Windows Server 2008 R2 PC that aren't syncing. I've read that whenever an ESXi server is run as a client, it also acts as a server, so ...
0
votes
1answer
32 views

I want to start VM for specific time

I am designing a system in which lot of VMs are there which run on KVM. My physical resources are limited, that is why I want to allow some of the VMs to run for some specific time(say Every Wednesday ...
1
vote
0answers
50 views

Monitor disk I/O used by specific command

I know that there are various tools for monitoring disk I/O, but I am wondering specifically if there is something equivalent to time for disk usage? For example, I am benchmarking a specific command ...
0
votes
1answer
65 views

Understanding 'time' command output?

There are several questions on this subject but none I've looked at provide quite what I need. My output looks like this: real 0m9.92s user 0m0.12s sys 0m0.02s Based on content of a ...
1
vote
1answer
682 views

Linux command to check wherever this day is a DST change day and which direction?

Im currently designing a solution to synchronize a Clock on a Equipment. Each time the Equipment is turned on after a poweroff, its Clock is exactly "01:01". To sync this Equipment, I have a NEXA ...
0
votes
1answer
469 views

Make computer lock itself after 30 minutes of continued usage

I would like a family computer to lock itself after 30 to 60 minutes of usage, mainly so only my wife can unlock it for those minutes just by entering the password. Is this possible? (I know of how to ...
2
votes
2answers
1k views

How do I know if the hardware clock in linux is set to localtime or UTC?

I have a dual booted PC, and in order to have Windows and Linux agree on the time, I have set the hardware clock to localtime in linux as described here. Now I want to make a script to check if my ...
0
votes
2answers
262 views

What does ARC stand for in terms of Linux time concepts?

Under Linux (Fedora 20), there is a file at /etc/sysconfig/clock looking like as follows: ZONE="America/Denver" UTC=true ARC=false What does ARC stand for?
0
votes
0answers
343 views

Windows time runs slow

I am using VPS from a web hosting provider Godaddy(windows server 2008 r2). In my VPS I found that time was running slow.The windows time clock has noticeably "losing time" as much as 8 to 10 sec ...
2
votes
0answers
510 views

NTP Multicast configuration

I'm trying to get NTP multicast set up between a few computers. Right now I'm getting NTP multicast packets from a computer that I have neither access to nor information on (let's call that A) that is ...
0
votes
0answers
33 views

How to block sites after I close its last tab?

For concentration, I would like to block Facebook. However my work is also on there so I can't block it at any specific time. I just know that after I close its last tab, every work on it is done, ...
0
votes
3answers
209 views

Ask for date on boot (challenge)

Issue An old laptop computer with XP loses date every time it boots. It has no more battery pack so it has to be plugged permanently in to wall. What I already tried Replaced the little button ...
0
votes
1answer
161 views

How do I increase the clock update (sync) frequency?

I use Windows 8.1 I would like to sync my time at a greater frequency then what is permitted by the GUI choices. How do I do this? Thank you.
1
vote
0answers
149 views

NTP syncs with ntp.ubuntu.com but not with the pool options

I am trying to configure my ntp server to synchronize with ntp servers available online. Below is my /etc/inet/ntp.conf and my ntpq -p output # ident "@(#)ntp.server 1.6 00/07/17 SMI" # # /etc/...
0
votes
1answer
666 views

How to find process stop time in linux?

I have one application which runs 24x7 in my system. But some how it was killed abruptly. I observe it 2 or 3 times from last 10 days. Now I want to find from how much time my application is stopped. ...
0
votes
1answer
482 views

hardware clock is set but date command is displayed wrong date and time

I am setting date with settimeofday function my hardware clock is set perfectly but when i execute date command it shows me wrong date and time. but if i reboot the system than it show me proper date....
0
votes
1answer
239 views

How to synchronize system time on servers upon network connection

I have 9 servers that have windows server installed on them, and have been set to synch with windows time server. They are expected to join a domain network (that at the moment has 4 servers) at a ...
1
vote
0answers
205 views

how to trace and correct the source of time difference between two different clients having the same NTP Stratum 2 source

My standalone server is connected and taking time from a dedicated NTP hardware that is synced to UTC through GPS. All clients in the network are connected to this stand alone server and the clients ...
50
votes
4answers
4k views

NTP - How are NTP servers so accurate

I've noticed that on my servers and other machines the clock always drifts so it has to sync up to remain accurate. How do the NTP server clocks not drift and always remain correct?
2
votes
1answer
716 views

System time messed up after booting from Linux flash-drive

I had recently installed Edubuntu 12.04 LTS onto a flash drive and have started booting from it. Since then, every time I reboot my system after using Edubuntu, my Windows time is four hours later ...
0
votes
1answer
231 views

Daylight savings issues in windows, possibly related to NTP sync

We have an app deployed to information kiosks across a number of sites, where employees of our client can log in and sign-on/off their shifts and view timesheets etc. Approaching every daylight ...
1
vote
1answer
661 views

Dual booting Debian / Windows XP: clock is off

I just installed Debian (Wheezy) on a Windows XP machine and am dual booting. But the clock is different! It's one hour late on XP versus Debian. I'm in Paris (GMT +1) and we're in winter (daylight ...
0
votes
1answer
97 views

Three different time values when using traceroute [duplicate]

I'm learning networking troubleshooting and noticed how there are three different time values outputted for every hop when using traceroute, what do they mean? (The left CLI in the image is a router ...
1
vote
1answer
373 views

How is CPU time measured on Windows?

I am currently creating a program which identifies processes which are hung/out-of-control, and using an entire CPU core. The program then terminates them, so the CPU usage can be kept under control. ...
2
votes
1answer
435 views

What is the rationale behind the default values for adjtimex --adjust?

The adjtimex utility has an --adjust mode that can be used to compare the system clock with the CMOS clock, calculate suggested values for the tick and frequency offset kernel time variables, and ...
2
votes
1answer
4k views

Timezone setting in Linux

I'm setting timezone GMT+6 on my Linux machine by copying the zoneinfo file to /etc/localtime, but the date command is showing the time UTCtime-6. What is the reason for this behaviour? I'm assuming ...
0
votes
1answer
2k views

Add custom time to video frames using ffmpeg

I am using ffmpeg to encode raw pixels data (bgr32) into a video file. Pixels data is being sent from java application to ffmpeg stdin pipe. I am looking for a way to add a timestamp overlay to each ...
0
votes
1answer
2k views

Why does my router send an NTP request to ntp.nasa.gov?

I have enabled logging on my router and restarted it. At the end of the log file it says: Sat, 2000-01-01 02:02:19 - Send out NTP request to ntp.nasa.gov Wed, 2014-01-15 18:01:39 - Receive NTP Reply ...
2
votes
2answers
92 views

How to get the time in Hawaii from the OS X command line?

As the title states, I would like to get the current time in Hawaii (UTC -10:00) from the OS X command line. Could anyone help?
2
votes
1answer
2k views

Significance behind January 6 1980 server time [closed]

Today my iPhone reset its date to Jan 6, 1980. I Googled it and apparently it’s a very common problem. I found a ton of results for January 1980, and most if not all were in January 6th of 1980. The ...
0
votes
1answer
865 views

How to have the time permanently visible in Win 8.1 Modern UI?

How can I keep the time always on top/always visible when I'm using different apps in the Modern UI mode? Thanks!
2
votes
2answers
154 views

How to run “time” on a function in zsh

This works: time ls -l This does not work f() { ls -l } time f No time output is printed in the second case. Why?
0
votes
2answers
2k views

How to setup robust Windows time synchronization?

I have an incorrect time on my Windows machine. I'm not sure how to specify the proper timezone and setup an NTP synchronization. When i'm using a dualboot configuration with Linux (Ubuntu) my time is ...