Need some tester people d00ds

Addis · 03-04-2005, 06:41 PM

for a certain programming job I have in mind, I need to log some data and write it to a file. I've got that part but I needed to find a way to get the system time. After ages of searchin I managed to find a method that i could understand

and used it.

Heres the problem: The date of part of the code seems to work ok, with it working. But when the time is displayed, the hour value is one lower than my system time. eg. at 18:00 the time is 17:00

I remembered about daylight saving times but I would have thought that it would read directly from my time (which is correct). I just want to know whether you get the same result or whether its just some freak anomaly with my PC.

Heres an example exe which just displays time

(sorry about the file size still not sorted that out)

Waffle · 03-04-2005, 06:48 PM

I get 18:47 as well, so one hour behind.

What are you using to do this sort of thing? I'm taking a course @ College next year, but would like a headstart lol.

Addis · 03-04-2005, 07:28 PM

Its in C++ and I'm using Dev-C++ latest version (www.bloodshed.net).

I guessed that would be it, but I'm having some headache's on how to predict daylight saving time, and leap years make things harder again. Bugger this I'm going for a shower and some food.

Sniper · 03-04-2005, 10:22 PM

Is it not possible just to add one hour to the time? time + 1 hour? I get the same btw.

Addis · 04-04-2005, 04:48 PM

Yea it is, but the problem comes when daylight saving times aren't like that anymore. The clocks go forward on a different date each year, and I don't know how to write an algorithm to predict the date.

Maybe something like:

if (date.wMonth == 4 && date.wDay >= /*date of clocks go forward*/)
{
if (date.wMonth == 10 && date.wDay >= /*date of clocks go back*/)
/*hour variable*/ = date.wHour + 1;
}

But I don't know the dates which they change since the dates change each year.

Addis · 04-04-2005, 04:56 PM

Its ok now I fixed it. Just ended up using a totally different function, reads the time ok now. The function gets the same job done and puts it into a character array, making it much easier for me to manipulate and it tells the time correctly while only using a small fraction of code than the other inaccurate complicated one.

03-04-2005, 07:28 PM	#3 (permalink) Top
Addis The King Join Date: Jan 2004 Age: 18 Male Posts: 5,255 Times Helpful: 403 My Mood: Drunk Status: Offline My Computer	Its in C++ and I'm using Dev-C++ latest version (www.bloodshed.net). I guessed that would be it, but I'm having some headache's on how to predict daylight saving time, and leap years make things harder again. Bugger this I'm going for a shower and some food. __________________ Never trust a program you don't have the source code for. My website \| Powerful Desktop Linux \| Linux for human beings \| Linux for power users \| Linux for ricers

03-04-2005, 10:22 PM	#4 (permalink) Top
Sniper Administrator Join Date: Oct 2001 Age: 24 Male Posts: 4,420 Times Helpful: 116 My Mood: Bored Status: Offline My Computer	Is it not possible just to add one hour to the time? time + 1 hour? I get the same btw. __________________ Zone 365 \| F@H Team \| Team Stats \| Use The Thank You System \| My Groups: Manchester United \| Apple

04-04-2005, 04:48 PM	#5 (permalink) Top
Addis The King Join Date: Jan 2004 Age: 18 Male Posts: 5,255 Times Helpful: 403 My Mood: Drunk Status: Offline My Computer	Yea it is, but the problem comes when daylight saving times aren't like that anymore. The clocks go forward on a different date each year, and I don't know how to write an algorithm to predict the date. Maybe something like: if (date.wMonth == 4 && date.wDay >= /date of clocks go forward/) { if (date.wMonth == 10 && date.wDay >= /date of clocks go back/) /hour variable/ = date.wHour + 1; } But I don't know the dates which they change since the dates change each year. __________________ Never trust a program you don't have the source code for. My website \| Powerful Desktop Linux \| Linux for human beings \| Linux for power users \| Linux for ricers

04-04-2005, 04:56 PM	#6 (permalink) Top
Addis The King Join Date: Jan 2004 Age: 18 Male Posts: 5,255 Times Helpful: 403 My Mood: Drunk Status: Offline My Computer	Its ok now I fixed it. Just ended up using a totally different function, reads the time ok now. The function gets the same job done and puts it into a character array, making it much easier for me to manipulate and it tells the time correctly while only using a small fraction of code than the other inaccurate complicated one. __________________ Never trust a program you don't have the source code for. My website \| Powerful Desktop Linux \| Linux for human beings \| Linux for power users \| Linux for ricers

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03-04-2005, 06:48 PM	#2 (permalink) Top
Waffle Alpha Geek Join Date: Apr 2004 Age: 20 Male Posts: 2,270 Times Helpful: 51 My Mood: Angelic Status: Offline My Computer	I get 18:47 as well, so one hour behind. What are you using to do this sort of thing? I'm taking a course @ College next year, but would like a headstart lol.

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