Get System Time

NTFSD
1

Hi all,

I m writting a minifilter driver and , I want to get Current System Time

If anybody knows which API will be used help me.

Thanks

2

KeQuerySystemTime.

L.

3

KeQuerySystemTime will return you NT native 64bit time, which is called FILETIME in Win32.

There is also RtlTimeToTimeFields which is the same as FileTimeToSystemTime (to year/month/day hour/minute/second)

–
Maxim S. Shatskih
Windows DDK MVP
xxxxx@storagecraft.com
http://www.storagecraft.com

wrote in message news:xxxxx@ntfsd…
> Hi all,
>
> I m writting a minifilter driver and , I want to get Current System Time
>
>
> If anybody knows which API will be used help me.
>
>
> Thanks
>

4

Also, unless you’re looking for GMT time (system time), you might want to throw a ExSystemTimeToLocalTime() in between KeQuerySystemTime() and RtlTimeToTimeFields().

mm

5

The vast majority of the time you really do want UTC while in driver land – at least in my experience. Time zones aren’t even per-machine nowadays (consider per-session time zone redirection in TS since Srv03), and even for things like debug or trace logs, it sucks to try and compare log timestamps from two different sites when things are recorded in different time zones.

  • S

From: xxxxx@lists.osr.com [xxxxx@lists.osr.com] On Behalf Of xxxxx@evitechnology.com [xxxxx@evitechnology.com]
Sent: Wednesday, September 09, 2009 1:19 PM
To: Windows File Systems Devs Interest List
Subject: RE:[ntfsd] Get System Time

Also, unless you’re looking for GMT time (system time), you might want to throw a ExSystemTimeToLocalTime() in between KeQuerySystemTime() and RtlTimeToTimeFields().

mm

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