Fun Project: xTalk GUID Generator
mark at maseurope.net
Fri Dec 1 12:40:01 CST 2006
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
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" <mwieder at ahsoftware.net> wrote in
> message news:14577606001.20061201090723 at ahsoftware.net...
>> 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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