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Windows 7: What is the "maximum" future date I can set Windows 7 to?

13 Mar 2013   #1
luckyrick

Windows 7 Home Premium 64bit
 
 
What is the "maximum" future date I can set Windows 7 to?

Will current 32-bit versions of Windows 7 encounter the year 2038 problem?

What about 64-bit? What is the "maximum" future date I can currently set my computer to?


My System SpecsSystem Spec
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13 Mar 2013   #2
indianacarnie

 

Not quite sure why you're worried about this, that IS a long time from now after all . But heres what Microsoft says about it :FIX: GETDATE() Returns Wrong Value When System Time Year >= 2038
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13 Mar 2013   #3
nommy the first

Microsoft Windows 8.1 64-bit Professional
 
 

In short, Yes and yes; both 32 bit and 64 bit Windows will be affected (the current version, that is).

You can test it yourself with the following Perl script:
Code:
#!/usr/bin/perl

# Use POSIX (Portable Operating System Interface) use POSIX; 

# Set the Time Zone to GMT (Greenwich Mean Time) for

date calculations.

$ENV{'TZ'} = "GMT";

# Count up in seconds of Epoch time just before and 

after the critical event.

for ($clock = 2147483641; $clock < 2147483651;

$clock++)

{

print ctime($clock);

}
For the technical explanation:
Time_t is a data type used by programs like C and C++ to represent dates internally. And 32 bit Windows stores a signed integer data type, such as time_t, in 32 bits. The first of these bits is used for the positive/negative sign of the integer, while the remaining 31 bits are used to store the number itself. The highest number these 31 data bits can store works out to exactly 2.147.483.647. A time_t value of this exact number represents January 19, 2038, at 7 seconds past 3:14 AM Greenwich Mean Time.

And then, basically, every single 32 bit C and C++ program will reach it's limit. So naturally 32 bit Windows will be affected. And since a lot of the programs on 64 bit Windows are based on 32 bit Windows, it's only logical to assume that 64 bit Windows will also be affected.

What'll happen is that within a second every single device on earth which is affected by this will shift from January 19th 2038, to December 13th 1901.


Nommy
My System SpecsSystem Spec
.

13 Mar 2013   #4
Britton30
Microsoft MVP

Windows 7 Ultimate X64 SP1
 
 

This begs the question, why worry about it? w7 will be but a happy memory in 2038.
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13 Mar 2013   #5
Slartybart

x64 (6.3.9600) Win8.1 Pro & soon dual boot x64 (6.1.7601) Win7_SP1 HomePrem
 
 

I don't worry about such things - I'll be dust by then.

The programmers will move the date AGAIN. The issue really only concerns two-digit year format. They have to select a range (I think it used to be 29)
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13 Mar 2013   #6
mitchell65

Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by Britton30 View Post
This begs the question, why worry about it? w7 will be but a happy memory in 2038.
As I hope I will be too! What a thing to worry about, it quite beggars belief!

BTW Luckyrick, I see they have moved Cornwall without telling me! Now that really is something to worry about or perhaps your time zone is wrong. I do hope that is the case cos I can't understand a dang word them GI's say!
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13 Mar 2013   #7
phillipduran

Win 7
 
 

Quote   Quote: Originally Posted by Britton30 View Post
This begs the question, why worry about it? w7 will be but a happy memory in 2038.
The Mayans didn't worry about it and look at the ruckus they caused.
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13 Mar 2013   #8
Thorsen

Win7 Home Premium 64x
 
 

Quote   Quote: Originally Posted by Britton30 View Post
This begs the question, why worry about it? w7 will be but a happy memory in 2038.
We will be running MacWindux 4 by that time.

Also, now I am wondering how the Tardis handles date formats....
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13 Mar 2013   #9
Gary

Win 10 Pro 64
 
 

I will be long gone by 2038 or way to old to care.
My System SpecsSystem Spec
13 Mar 2013   #10
mitchell65

Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by Gary View Post
I will be long gone by 2038 or way to old to care.
I'm too old to care now
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 What is the "maximum" future date I can set Windows 7 to?




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