getTimestamp()->getSeconds() * MILLISECONDS_PER_SECOND; /** @psalm-suppress ImpureMethodCall - mutation free */ $intl_timezone->getOffset($timestamp_millis, $local, $raw_offset, $dst_offset); return Duration::milliseconds($raw_offset + $dst_offset); } /** * Calculates the raw time zone offset for the current timezone, excluding any daylight saving time (DST) adjustments. * * This method retrieves the fixed offset from UTC for the timezone without considering any seasonal adjustments * that might apply due to DST. It's particularly useful for understanding the base offset of a timezone. * * @psalm-mutation-free */ public function getRawOffset(): Duration { /** @psalm-suppress ImpureMethodCall - mutation free */ return Duration::milliseconds(Internal\to_intl_timezone($this)->getRawOffset()); } /** * Calculates the daylight saving time (DST) offset for a given {@see TemporalInterface} instance at its specific time. * * This DST offset is the adjustment added to the raw timezone offset, if DST is in effect at the temporal instance's time. * * @param bool $local Indicates whether the temporal object's time should be treated as local time (`true`) or as UTC time (`false`). * * @return Duration The DST offset as a Duration instance. If DST is not in effect, the offset will be zero. * * @psalm-mutation-free */ public function getDaylightSavingTimeOffset(TemporalInterface $temporal, bool $local = false): Duration { $intl_timezone = Internal\to_intl_timezone($this); $timestamp_millis = $temporal->getTimestamp()->getSeconds() * MILLISECONDS_PER_SECOND; /** @psalm-suppress ImpureMethodCall - mutation free */ $intl_timezone->getOffset($timestamp_millis, $local, $_, $dst_offset); return Duration::milliseconds($dst_offset); } /** * Determines whether the current timezone observes Daylight Saving Time (DST). * * This method checks if the timezone has any DST rules and if DST is applied at any point during the year. * * @return bool True if the timezone uses Daylight Saving Time at any point in the year, false otherwise. * * @psalm-mutation-free */ public function usesDaylightSavingTime(): bool { /** @psalm-suppress ImpureMethodCall - mutation free */ return Internal\to_intl_timezone($this)->useDaylightTime(); } /** * Retrieves the amount of time added during Daylight Saving Time for the current timezone. * * This method returns the typical adjustment made to the local time when DST is in effect. * * If the timezone does not observe DST or if there is no current DST adjustment (e.g., outside of DST periods), * the method will return a Duration of zero. * * @psalm-mutation-free */ public function getDaylightSavingTimeSavings(): Duration { /** @psalm-suppress ImpureMethodCall - mutation free */ return Duration::milliseconds(Internal\to_intl_timezone($this)->getDSTSavings()); } /** * Determines whether the current timezone has the same rules as another specified timezone. * * @psalm-mutation-free */ public function hasTheSameRulesAs(Timezone $other): bool { /** @psalm-suppress ImpureMethodCall - mutation free */ return Internal\to_intl_timezone($this)->hasSameRules(Internal\to_intl_timezone($other)); } }