Patent ID: 7916580

Claim:
A method in a computing device for maintaining date and time information, the method comprising: providing an indication of a designated time zone; providing rules for converting a date and time from various time zones to a common time zone; receiving a date and time in the designated time zone; converting the received date and time to a date and time of the common time zone based on a provided rule for the designated time zone; storing the converted date and time along with an indication of the rule used to convert the date and time from the designated time zone to the common time zone; receiving an indication of an overriding rule that overrides an existing rule for converting a date and time between the designated time zone and the common time zone; and when the stored indication indicates that the rule used to convert the stored date and time is the overridden rule, updating the stored date and time based on the overriding rule and storing an indication of the overriding rule.