[ https://issues.jboss.org/browse/LOGMGR-68?page=com.atlassian.jira.plugin.... ] Paul V commented on LOGMGR-68: ------------------------------ Having the same problem JBoss 7.2.0 - Log Manager 1.4.0 The problem depends on the switch statement falling through the DAY and HALF_DAY cases and on the time being ( AM or PM ) of the parameter fromTime passed to the calcNextRollover method of PeriodicRotatingFileHandler. private void calcNextRollover(final long fromTime) { ... switch (period) { ... case DAY: calendar.set(Calendar.HOUR_OF_DAY, 0); // set to 0 of the 24 hour clock case HALF_DAY: calendar.set(Calendar.HOUR, 0); // set to 0 (fromTime is AM) or 12 (fromTime is PM) // this resets Calendar.HOUR_OF_DAY TO 12 if fromTime is PM ... } ... } This could be fixed by checking if the period variable is HALF_DAY otherwise it is unnecessary to set Calendar.HOUR private void calcNextRollover(final long fromTime) { ... switch (period) { ... case DAY: calendar.set(Calendar.HOUR_OF_DAY, 0); // set to 0 of the 24 hour clock case HALF_DAY: if (period == Period.HALF_DAY) // don't need to worry about setting Calendar.HOUR if Calendar.HOUR_OF_DAY was already set calendar.set(Calendar.HOUR, 0); // Calendar.HOUR will be properly set to 0 because of the previous call if we fell // through the DAY case regardless of AM or PM … } ... } -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira