When DateTime.Now looks to adjust its value based on timezone (and daylight saving requirements), it fetches a value UtcNow. This value is obtained by a call to unmanaged code GetSystemTimeAsFileTime() which the JIT maps to mono_100ns_datetime(). This routine uses gettimeofday() to fetch the current time. However, this is the local time and it does not adjust it to be UTC. So the comparison it makes in the test to see if the datetime has transitioned to or from daylight saving or not is done against local time and not UTC.
I have instrumented the code to show how the test against the rule appears to be being made against local time and not UTC at http://pastebin.ca/3629144. Neale _______________________________________________ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
