The flags set for this member identify specific details for this time zone rule. The possible flags are as follows:
TZRULE_FLAG_EFFECTIVE_TZREG—Identifies the rule as the one that should be used currently. Only one rule can be marked as the effective rule. All other rules are for comparison purposes only.
TZRULE_FLAG_RECUR_CURRENT_TZREG—On recurring meetings, identifies the rule as matching the rule in PidLidTimeZoneStruct. This can be used to detect whether PidLidTimeZoneStruct has been modified significantly by a legacy client, which would be otherwise unaware of the new, more complete property.
The time in Coordinated Universal Time (UTC) that the time zone rule started.