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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How do I set the time on my Ubuntu

I run my ubuntu on a virtual machine and the time does not update. How can I set up my machine so that everytime I turn it on the time will be correct? Ubuntu 12.04 running on a VMware VM with a W7 ...
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1answer
33 views

If I change my computer's clock, will Area-51 think I'm on a different time? [closed]

On Area 51 Stack Exchange, you can only post 1 site proposal per day. What if I change my computer's clock? Will I be able to post multiple proposals per day? What if I change the clock back to where ...
0
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0answers
9 views

hrs to be taken with vlookup and add the existing date with time [closed]

I was trying many of the formulas to check the total time taken. In sheet 1 I have a date and time ID date 456 6/15/15 23:00 123 6/15/15 2:00 and in sheet 2 I have got numbers ID taken 678 ...
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4answers
9k views

Automatically sync windows time more often than default

I have a few PCs that are losing time, and I'd like windows to synch them more often with the internet time. I think the windows default attempts to update only once per day, and does not update if ...
0
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1answer
20 views

Syncing to a Cell Phone Companies NTP Server [closed]

Not strictly for authentication, I am looking for a way force my Ubuntu NTP Server to use my cell phone companies network time as a basis for all my in home time. I cannot seem to find the address ...
0
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0answers
27 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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0answers
38 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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1answer
125 views

Calculating Time Differences in Excel

I would like to calculate time differences within Excel but am having trouble with the formula. I am comparing a screen time to the actual speaking clock time. e.g Speaking clock = 13:00:00 ...
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1answer
36 views

How to change the date in Windows 7 by using command prompt?

When I try to change the date in Windows 7 using the Command Prompt, I get the error: "The required privilege is not held by the client" How can I solve this problem?
2
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1answer
4k views

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 ...
3
votes
3answers
7k views

how to run cron jobs on GMT not local time?

How can I make cron jobs run on GMT, not local time? this is my crontab file: #m h d m wday command TZ=GMT 5 0,6,12,18 * * * ~/Documents/bash/transfer.sh my jobs seem ...
3
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1answer
39 views

System time moving slower by high CPU usage

My computer used to have no problems staying at high CPU usage, until a few days ago, which I noticed that this would make the system time move slower. There is around 15 to 30 minute lag for each ...
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1answer
24 views

Relativistic NTP

I was wondering whether any provision is made in the NTP standard to synchronize time between machines travelling near the speed of light relative to each other. Does NTP even work in these ...
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votes
1answer
18 views

Centos set time without ntp

I've a centos 6.5 server. The time is 20mins ahead so I want to fix it. I can't use ntp as I've read it requires an input port to be opened in the firewall but I don't have control on the external ...
4
votes
3answers
4k views

How is time measured in computer systems?

Something I have been puzzled about is this: how exactly does a computer regulate and tell time? For example: if I were to write a program that did this: Do 2+2 then wait 5 seconds How does the ...
4
votes
4answers
478 views

How to limit CPU consumtion of a process group with standard GNU/Linux tools?

I have a bunch of processes of the same name - they take up 100% of my CPU time, I want this to be no more than 50%. How can I do this without installing any extra software?
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1answer
911 views

Add milliseconds to existing Unix time

I have a script that returns Unix time in seconds, for example, 1374521719. I'd like to take in this time and place milliseconds to that. Other posts show a simple example of this with the current ...
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1answer
39 views

Time Machine backup to FTP server

How can I get a Mac computer using Time Machine to back up to a server using FTP? I have not tried anything yet and everything I've search for is about 6 years old.
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3answers
2k views

Bash: number of seconds till midnight of current day

How do I find the number of seconds till midnight of current day?
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1answer
99 views

How to calculate estimated moments with 8 hour work days

In my worksheet, I want to calculate estimated end times of processes taking into account workday timeframes. Assume working days of 8:00 - 17:00 and omit Saturday and Sunday. So, for example, when ...
27
votes
9answers
41k views

Show Windows 7 logon time?

On Windows 7 Ultimate, is there a way to see when I logged on into the current session? I want to find out how long I have been at the PC / when I started it up.
1
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1answer
40 views

Cell Formatting, 0.00 where blank value

I have some cells that are formatted as hours and minutes i.e. [h]:mm. If no value exists in a cell I want the cell to show 0:00 without having to manually type. It needs to be user friendly, so if ...
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2answers
20 views

Get Average of time data in excel 2010

How do I compute average time in my column N my AHT works when I only use =AVERAGE(N6:N7) but when it is =AVERAGE(N6:N755) until the last column , it doesn't work note that there is only value on N:6 ...
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0answers
16 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++ ...
6
votes
3answers
16k views

How to set Debian to automatically update time and date?

I have an old computer and BIOS counts the time slower than real ;) So, how can I set my OS to update the time automatically using the internet? If it updated the time only during booting, it would ...
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2answers
660 views

Windows computer keeps updating to UTC time

I have a new Dell computer running Windows 7 x64 (and no other OS). I live in Mountain Time, as my computer is aware (it says Mountain Time in the Date and Time window, from right-clicking on the ...
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0answers
23 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 ...
14
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1answer
10k views

Using virtual box is it possible to set your virtual machine time to be different from host time

Using virtual box is it possible to set your virtual machine time to be different from host time. Say 1 year into the past. If I wanted to run the windows XP images provided by Microsoft from here. ...
8
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5answers
12k views

How to get video duration in seconds?

How can I get video duration in seconds? What I've tried: ffmpeg -i file.flv 2>&1 | grep "Duration" Duration: 00:39:43.08, start: 0.040000, bitrate: 386 kb/s mediainfo file.flv | grep ...
2
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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 ...
2
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0answers
37 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 ...
3
votes
1answer
4k views

The system time has changed kernel-general, off by one day

Random events showing in event log. The system time changes to tomorrow, and then corrects about 10-15 seconds later. Causing all sorts of temproary havoc w/ VPN, Outlook, etc. Any thoughts?
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2answers
33 views

How to set the time for the screen to lock asking for the password?

I can set the inactivity time for the screen saver to start, but I cannot set the time for the screen to lock asking for the password. Is it possible to do it? Is it possible to synchronize the ...
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1answer
47 views

What time does NT time start on

Unix time starts on January 1st, 1970. What time does WinNT time start?
5
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2answers
1k views

How can I batch shift the creation date of files on OS X 10.6.8?

Please note that I am not asking how to change the creation date of a bunch of files to a given date. I want to shift the date by a given amount of time, for example 47732400 seconds. Can I ...
0
votes
1answer
57 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 ...
0
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1answer
23 views

Is it possile to set time before windows disable device for energy saving purposes?

I have a tablet-pc with Windows 8 and dock keyboard. Windows disables dock keyboard after ~10 seconds of downtime by default. I want to increase that time to 60 seconds at least. Is it possible ...
0
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1answer
989 views

X axis on Time-Based data

I have a series of 24 hr. data, taken about once per hour. I wish to plot the values against time. On day 1 the 10:00 data was taken at 10:10, on day 2 the data was taken at 9:58. I do not want both ...
2
votes
2answers
2k views

Excel Concatenate Time

I have had a look at this site, and across the net, but can't seem to solve this, which should be easy! Concatenate should work, but I wasn't able to make it work. Current spreadsheet looks like ...
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3answers
10k views

Calculating time in Excel between AM and PM

I have an Excel spreadsheet that calculates the difference between two times. The formula that I'm using, for example, is as follows: Cell A1 12:00 PM Cell B1 12:30 PM Cell C1 =minute(B1-A1) and the ...
0
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1answer
30 views

Do Windows 7 time zones work correctly?

As you see below, I changed the Windows clock time-zone from UTC +3:30 Tehran to UTC +1:00 Windhoek. As 3:30 - 1:00 = 2.30, I expect the time to change -2:30, But it change -1.30 : Before : After ...
0
votes
1answer
117 views

Add Date-Time Stamp To Copied File using Windows Batch

I thought this would be simple but it seems more of a challenge than I thought. I want a file to be copied and pasted with a time stamp appended. I get the time stamp using this code: set ...
18
votes
4answers
289k views

How can I check a system's current NTP configuration?

I need to verify the current NTP configuration on some Windows systems. Ideally, I'd like to be able to do this via command line instead of navigating through configuration screens. (I'm working on ...
9
votes
1answer
10k views

How to synchronize clocks for computers that are not online?

I have some computers that run Windows 7 embedded and are connected to each other by a switch, but are not connected to a larger network or the internet. After a few weeks, the clocks drift and it is ...
0
votes
1answer
184 views

Windows 7 thinks that the UTC+1 Amsterdam time zone is really an UTC+10 time zone

I've been having problems with the Windows clock from a while. I tried a variety of solutions, but nothing seemed to really work, so finally I just decided to disable the automated internet time ...
1
vote
1answer
380 views

How do I interpret w32tm output, especially d:?

I am trying to understand what all the different values mean in the following output. I understand the command below is comparing my local time ("current time is") with time.nist.gov 8:38:08 is my ...
0
votes
1answer
26 views

Time format of Pomodoro in LibreOffice Calc

I'm using LibreOffice Calc in Windows 7 and I'd like to write a formula that, given a decimal number, converts it to hours and minutes. For instance I have this: cell E3 is =($B$3*25/60) i.e. it ...
3
votes
0answers
36 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
67 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 ...
0
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1answer
43 views

h:mm:ss for workout data in MS Excel for Mac

I am trying to store my running data in an Excel spreadsheet, but Excel keeps formatting it as a date and time. For instance, I enter in 30:00 for 30 minutes and 0 seconds, and Excel converts it to ...