storage
Returns the time-zone ID for a given date or date-time that should be used to store it in the Android calendar provider.
Does not check whether Android actually knows the time zone ID – use androidifyTimeZone for that.
Return
UTC for dates and UTC date-times
the specified time zone ID for date-times with given time zone
the currently set default time zone ID for floating date-times
Parameters
date
DateProperty (DATE or DATE-TIME) whose time-zone information is used