clock interview questions
Top clock frequently asked interview questions
In my country, the official time changes in the first month of spring and fall.
When the official time changes, my mobile phone's and PC's clocks change as well.
How do these devices find out there's a change?
Source: (StackOverflow)
Is it possible to get the Windows 7 taskbar clock to display the seconds, without having to install a utility?
Source: (StackOverflow)
In all windowses before 10 I could just pull the taskbar up and I could see which day it is:

But when doing that in Windows 10 it doesn't work:

How can I get my weekday back without having to hover over the clock?
Source: (StackOverflow)
Is it possible to display the clock on the taskbar on each screen in Windows 8, preferably without 3rd-party tools?
Source: (StackOverflow)
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?
Source: (StackOverflow)
I'm using Windows 7 RC and for some reason, the date won't show at all on my system tray. It used to for a while, but one day it just stopped (I didn't even notice it until someone pointed it out).
So I've been trying to fix it, by customizing the format of the date, resetting to defaults, etc... But nothing works, it still doesn't show.
The time appears fine.
Source: (StackOverflow)
Staring at my Raspberry PI, I can see that the devices clock is going wrong - an error that you can find on many computers.
However, even though the month and hour is wrong; the minutes are still correct.
Device time
1:36 PM
Actual time
3:36 PM
(notice the minutes)
How can this be? How come it can only find out the correct minute instead of an accurate dare?
Source: (StackOverflow)
I've noticed my OS X system time on my iMac is running faster after I updated to Mavericks, after about a week it is a good 4 or 5 minutes too fast.
In my Date & Time preferences everything is set to automatic, time is set to update using Apple Europe (time.euro.apple.com.)
and the time zone is set to automatic too.
Any idea why this could be happening, and how to fix it?
Source: (StackOverflow)
I'm currently using Windows 7 Ultimate. I've seen that some people have full date/time info in their system tray clock like this:
However, my current system tray clock is shown like this:
I wonder how I could change the clock, but can't find any way to do so without a third party application. Maybe there's a way to hack into registry or something?
I know that I can enlarge the taskbar to get it, but I don't want to lose my screen space that way.
solved:
Finally I gave up with the "non 3rd party" idea and use Tclock Light to do it, this small free, portable application do it awesome :D.
Source: (StackOverflow)
My Dell Vostro 1720 laptop's clock drifts when waking from standby mode (even by five minutes sometimes). This is really annoying and sometimes dangerous.
I tried decreasing the Windows time sync interval to four hours but that does not really help that much.
Can I make Windows synchronize time on every wakeup (and other related events)? Additionally, is there an equivalent of Linux's command to synchronize on demand - ntpdate?
Perhaps this problem has something to do with a faulty hardware component (a battery or something)?
I'm running Windows 7 Professional 64-bit.
Source: (StackOverflow)
Whenever I see Linux booting, I see this message:
clocksource tsc unstable (delta = NNNNNNNN ns)
where NNNNNNNN is some very large number which may be positive or negative.
What does this message mean? Should I be concerned about this?
Source: (StackOverflow)
Windows 7: My time is always two hours behind the actual time.
I've changed the time, but, whenever I restart it, goes back to the incorrect time, 2 hours behind the actual time.
I'm on (UTC+02:00) Harare, Pretoria. Even if I try sync time with an Internet server, it still is incorrect by 2 hours!
How can I fix this?
Source: (StackOverflow)