Tcl Source Code: View Ticket

Ticket UUID:	4af4d24baaae6b77c88dfbe0ce2dde201cd17daa
Title:	Timezone setting fails for non-DST TZs under Windows
Type:	Bug	Version:
Submitter:	cmcc	Created on:	2014-03-05 02:07:57
Subsystem:	06. Time Measurement	Assigned To:	kbk
Priority:	5 Medium	Severity:	Minor
Status:	Open	Last Modified:	2014-03-18 11:17:19
Resolution:	None	Closed By:	nobody
		Closed on:
Description:	Under Windows in some timezones (those which do not have Daylight Savings Time,) clock.tcl's [GuessWindowsTimeZone] fails, because it does not expect to find the StandardStart and DaylightStart registry values to be empty. This results in a fallback to :localtime timezone when the registry has actually supplied all the information necessary to discover the TZ. Perversely, Windows reports DaylightBias of -60, even though it can never be used. The observed values reported by Windows are: Bias -420 StandardBias 0 DaylightBias -60 StandardStart "" DaylightStart ""