Package: wmcalclock
Version: 1.25-14
The wmcalclock 30-hour time patch has a daylight savings time bug that
causes the wrong date to be displayed for exactly one hour each year.
Reproduce by running
datefudge "2006-04-02 23:59:55" wmcalclock -30
and watching the date roll over from Apr. 2 to Apr. 1.
Here is a fix. (This algorithm has been tested against a 72-hour period
surrounding both DST changes.)
--- wmcalclock-1.25.orig/debian/patches/02_30hr_patch.dpatch 2008-11-20
19:49:36.000000000 -0500
+++ wmcalclock-1.25/debian/patches/02_30hr_patch.dpatch 2008-11-20
19:55:37.000000000 -0500
@@ -30,7 +30,7 @@
+ /* Careful. Need to handle daylight savings time changes correctly.
*/
+ if (Time->tm_hour < 6){
+ int old_hour = Time->tm_hour;
-+ time_t new_time = CurrentLocalTime - 24 * 60 * 60;
++ time_t new_time = CurrentLocalTime - 12 * 60 * 60;
+ Time = localtime(&new_time);
+ Time->tm_hour = old_hour + 24;
+ }
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