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.

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Why does NTP require bi-directional firewall access to UDP port 123?

From What are the iptables rules to permit ntp?: iptables -A INPUT -p udp --dport 123 -j ACCEPT iptables -A OUTPUT -p udp --sport 123 -j ACCEPT Also, from the NTP website: ... ntpd requires ...
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620 views

Windows 7 set to UTC RTC forcibly changes time

I really want to make Windows 7 understand that RTC in using UTC instead of local time. I found a solution, except for it does not play well with time synchronization. I have: Modified the registry ...
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40 views

CPU Time and Clocks

I've been given this question: Assume that on some computer the overhead of trapping to the kernel for clock ticks is about 2 microsecond, with the handler requiring another 9 microseconds. Clock ...
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76 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. ...
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0answers
99 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 ...
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306 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 ...
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226 views

Changing windows 7 time to military time only on additional clocks

I'd like to have my timezone (central) stay at the short time AM/PM format, but I'd like to have an additional clock that would be a different time zone show a military time. I can change the windows ...
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459 views

Is there a way to schedule tasks in windows specifying a specific time zone?

I need to schedule several tasks to run, where each needs to run at a specific local time in a different city. For example, one job might need to run at 19:00 New York City, and another needs to run ...
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357 views

Slow down clock/timer of a Linux program

Sometimes a Linux program requiring fast user interaction/manual dexterity runs too fast for me to keep up. Examples include video games and video players that don't let you control the speed. How ...
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54 views

Time Zone Value: N/D?

When reviewing the output of the set command in Windows XP, I noticed a time zone value of "N/D". What does this mean? Not Defined? No Data? Why would this happen? -M
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29 views

Windows 10 image from Clonezilla comes up in GMT-1

Mixed Win8.1 / Win10 shop, Linux infrastructure. Jenkins runs machines; OS, apps, drivers, Clonezilla supplies OS images. Images installed by PXE boot/Jenkins coercing it. With release of Win10, ...
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57 views

How can I set 24 hour time in KDE5

It seems the new way to set your preferred date format is by country and language. I've never thought about this method but I guess it encourages people to be more multicultural, researching how ...
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37 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 ...
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129 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" # # ...
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152 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 ...
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69 views

Modified times of folders

How does the inheritance and propagation of modified times happen? In order to better put my question, I am going to list three examples: A folder has three files. One file gets modified (by any ...
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541 views

What format can I use in Excel to display both date and time in system formats

I need to display both date and time in system date and time formats. I know that [$-0xf800] means the system long date format and [$-0xf400] means the system time format, but [$-0xf800][$-0xf400] ...
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174 views

OC'ing a Sapphire 7950, problems with memory clock

I bought a new rig with sapphire radeon 7950 flex w/ boost. Good scores initially in 3dmark 11, around 7300 stock. Problem is, as soon as i start overclocking, issues arise. the core clock is at 860, ...
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76 views

Time Machine backups & OS restore

My permissions were all screwed up and after every exhaustible try to change them all back my only solution was a complete restore. So I did a time machine backup onto my external and started ...
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446 views

Can't connect to Apple Time Capsule in home network using Home Plugs from Win 7 Machine

I have the following home network setup with subnet 255.255.255.0 but recently moved my time capsule to a different location when I added a third Home Plug and can no longer ping or map a network ...
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1k views

Gnome 3 - Unable to change date and time

I am running Arch Linux with Gnome 3. Unfortunately, although my time and date settings in /etc/rc.conf show that HARDWARECLOCK='UTC' and TIMEZONE='America/LosAngeles'. I continue to get the timezone ...
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39 views

How do I move only coming occurences of a series in Outlook?

I have created a series that occurs every week. Now I want to change the time of this series. When doing this Outlook changes the time also for past events. I do not want this. What can I do? I came ...
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297 views

How to skew a Mac's clock 10 minutes while still keeping it “synchronized”?

My wife is always running late. How can I skew her Mac's clock 10 minutes while still keeping it "synchronized"? I looked at the fudge setting of /etc/ntp.conf but it's only for a Reference Clock and ...
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102 views

script -e and crontab or at

I have a shellscript I want to run via at and use script to capture a transcript. script -e was introduced in util-linux-ng 2.18 and returns the retval of the child process. I want to capture the ...
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349 views

Delete on windows vista and seven — discovery process

I've recently encountered a problem. Using svn at work I needed to clear some space. As you may know svn directories are full of sub-directories and files. So the delete process begins with a step ...
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1k views

Windows Media Player - always show Current Time/Total Time

I'm using Windows Media Player 12 on Windows 7. When I open a video file then it by default only shows the current position (time). If I click on it once then it changes to format Current Time / Total ...
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438 views

Windows 7 made 2 hour shift for Daylight Savings Time

My win7-64 ultimate has set the clock ahead 2 hours. It appears to have done it in increments of 1 hour, with the second 1 hour shift made sometime today. The first, correct, shift for Daylight ...
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25 views

Windows 10 Family Safety: Time limits and screen locking

I recently set up my son's computer with family safety, and I have him limited to 3 hours of total screen time per weekday. I have told him that when he gets up to go outside, eat, or whatever to lock ...
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43 views

Why is my Windows “System.currentTimeMillis()” system time exactly 8 seconds behind all the other computers?

I am writing a real time networking program running on multiple computers and I decided to synchronize events using the OS system time. The problem is that one of my computers is 8000 ms behind the ...
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45 views

Unable to open two (so far) SSL sites, all others work normally

I have tried IE, Chrome, and FF. I have turned off WiFi on my mobile device and the connection goes through normally. From my computers connected to my internet, I'm unable to load the pages, it just ...
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18 views

Timer (and animations) running at half speed

I noticed that recently all animations on my PC started running slowly (Aero animations, Games etc.) , although everything else is running normally. This seemed very strange, so I ran a simple C++ ...
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28 views

Block unwanted change in system time on windows

I don't want users to be able to change the system time. For this, I have set the Group Policy "Change the system time" to include only my Administrator account. I want to know the validity of this ...
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20 views

Cygwin's timestamps are all off

My system time is set for CST, America/Chicago. It is currently 11:38 AM CST, 17:38 UTC, on 2014-01-08. It also affects ls, and any other program. I believe am running into time zone conversion ...
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28 views

TIME of process not listed in ps on Cygwin

I am trying to find the TIME of a process which you would normally find in ps on a Unix based system but instead on Cygwin there is STIME which surely is not the same thing; I've tried to google for ...
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31 views

update time from a desired NTP once in windows

OK, I normally used to configure time from a machine (myservername) that is an advertized windows net time server in my domain net use \\myservername /set Well this set the time value of the server ...
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1k 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 ...
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30 views

Time sync over bluetooth

I am in a rather strange situation.I have two laptops that I want to have their clocks synced but I should not use ntp or any other kind of network traffic. Is there an rtc of some kind that works ...
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69 views

Make an Excel Graph Axis Show Two Time Zones

I have an Excel graph that displays the time of day in 24 hour HH:MM format. I need to also show the time with an offset for another timezone. How can I do this? I've attempted to use a custom ...
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694 views

How to verify that a Windows 2008 server is correctly updating its time using an external NTP server?

After applying Microsoft Fix it 50395 from KB816042 and specifying ntp time servers "0.nl.pool.ntp.org,0x8 1.nl.pool.ntp.org,0x8" the registry ...
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170 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 ...
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29 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, ...
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2k views

Getting clock / time info from a Win 7 PC to an Arduino

Assume I connect a microcontroller board (like an Arduino) to a Win 7 PC via USB. Is there anything in the USB communication protocol that contains host clock data? In other words, can I sync the ...
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124 views

How to show time of day (7:42 AM) in VLC fullscreen mode?

Is there a way to show the time of day in the corner somewhere which in VLC fullscreen mode?
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635 views

Ubuntu 12.04 x32 - Windows 7 Pro x64 dual boot - clock is wrong (UTC)

I have a problem with time when booting windows after linux. The reason is that Ubuntu saves hw clock as UTC but Windows 7 expects it to be saved as localtime. So Windows shows time that is one hour ...
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0answers
97 views

Time and display is not working properly

My time and calendar is always wrong. I don't know how to do it anymore. I tried everything from changing time zone to checking out the services.msc etc etc but after a while again the time seems to ...
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62 views

Excel creating weird diagrams

I have a list of times in one column. They are formatted as Time cells. When I simply select the values and click Insert -> Line (diagram), I can't seem to get the right kind of diagram. What ...
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293 views

Different epoch times on 2 machines: Where to configure correctly?

I have 2 linux machines that need to run a Perl script and access a database. The date (as reported by the date and dateĀ -u commands) is correct (within a couple of minutes), but returning epoch from ...
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537 views

Program to set time on local computer using GPS data

I have a laptop running Windows XP that does not connect to the Internet and I would like to use a USB GPS receiver as a time source to set the clock. Generally, the laptop will not have access to the ...
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0answers
708 views

Linux stuck one hour ahead (CentOS)

I use CentOS, and for some reason, one of the servers I bought (amongst a network of other servers I do not own) is off by one hour. The time is one hour ahead no matter what time zone I set it to. ...
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340 views

Login time on Windows 7

If I enter the wrong password, it rejects the password immediately but on entering the right password it takes a longer time to validate it. One the first login, this is possibly due to the startup ...