From http://home.famkruithof.net/guid-uuid-timebased.html
Generally a programmer does not get the current time in 100
nanosecond intervals since 15 October 1582, but for instance in
millisecond precision since 1 January 1970. In this case, to come
from milliseconds to nanoseconds precision multiply the time returned
from the system by 10000 and to correct the start date add an offset
of 122192928000000000.
Best,
Mark
On 1 Dec 2006, at 17:35, Bill Marriott wrote:
And Rev's "the milliseconds" returns the total number of
milliseconds since
the "start of the eon" -- which is midnight GMT, January 1, 1970.
Ticks is
the same, but returns 1/60th of a second. I don't think we have a
way of
accessing nanoseconds (billionth of a second).
"Mark Wieder" <[EMAIL PROTECTED]> wrote in
message news:[EMAIL PROTECTED]
Bill-
Thursday, November 30, 2006, 1:18:01 PM, you wrote:
I love this comment from the rfc:
/* NT keeps time in FILETIME format which is 100ns ticks since
Jan 1, 1601. UUIDs use time in 100ns ticks since Oct 15, 1582.
The difference is 17 Days in Oct + 30 (Nov) + 31 (Dec)
+ 18 years and 5 leap days. */
Gotta love those Microsoft "standards", dontcha?
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