(PHP 5.5.0, PECL >= 3.0.0a1)

IntlCalendar::setRepeatedWallTimeOptionSet behavior for handling repeating wall times at negative timezone offset transitions


Object oriented style

public bool IntlCalendar::setRepeatedWallTimeOption ( int $wallTimeOption )

Procedural style

bool intlcal_set_repeated_wall_time_option ( IntlCalendar $cal , int $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).

This function requires ICU 4.9 or later.



The IntlCalendar resource.


One of the constants IntlCalendar::WALLTIME_FIRST or IntlCalendar::WALLTIME_LAST.

Return Values

Returns TRUE on success. Failure can only happen due to invalid parameters.


See the example on IntlCalendar::getRepeatedWallTimeOption().

See Also

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