Defines a yearly pattern when and how there is a switch from winter to summer time and vice versa.
Represents a standard daylight saving rule following the gregorian calendar as used in IANA-TZDB.
Factory class for creating zonal transition histories.
Helps to interprete a timestamp relative to an timezone offset.
Permits the construction of historized or rule-based timezones.
Note: Fractions of seconds are always ignored so the whole timezone-API handles just second precision.
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