(PHP 5.5.0, PECL >= 3.0.0a1)
IntlCalendar::setRepeatedWallTimeOption — Set behavior for handling repeating wall times at negative timezone offset transitions
$wallTimeOption
)
Sets the current strategy for dealing with wall times that are repeated
whenever the clock is set back during dailight saving time end transitions.
The default value is IntlCalendar::WALLTIME_LAST (take
the post-DST instant). The other possible value is
IntlCalendar::WALLTIME_FIRST (take the instant that
occurs during DST).
wallTimeOption
One of the constants IntlCalendar::WALLTIME_FIRST or
IntlCalendar::WALLTIME_LAST.
Returns TRUE on success. Failure can only happen due to invalid parameters.
See the example on IntlCalendar::getRepeatedWallTimeOption().