Runtime Configuration

The behaviour of these functions is affected by settings in php.ini.

Date/Time Configuration Options
Name Default Changeable Changelog
date.default_latitude "31.7667" PHP_INI_ALL  
date.default_longitude "35.2333" PHP_INI_ALL  
date.sunrise_zenith "90.583333" PHP_INI_ALL  
date.sunset_zenith "90.583333" PHP_INI_ALL  
date.timezone "" PHP_INI_ALL  
For further details and definitions of the PHP_INI_* modes, see the Where a configuration setting may be set.

Here's a short explanation of the configuration directives.

date.default_latitude float

The default latitude ranging from 0 at the equator, to +90 northward, and -90 southward.

date.default_longitude float

The default longitude ranging from 0 at the prime meridian to +180 eastward and −180 westward.

date.sunrise_zenith float

The default sunrise zenith.

date.sunset_zenith float

The default sunset zenith.

date.timezone string

The default timezone used by all date/time functions. The precedence order for which timezone is used if none is explicitly mentioned is described in the date_default_timezone_get() page. See List of Supported Timezones for a list of supported timezones.

Note: The first four configuration options are currently only used by date_sunrise() and date_sunset().

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