Date and TimeDate/Time
&reftitle.intro;
The DateTimeImmutable and related classes allow you
represent date/time information. The objects can be created by passing in a
string presentation of date/time information, or from the current system's
time.
A rich set of methods is supplied to modify and format this information
as well, including handling timezones and DST transitions.
The date/time features in PHP implements the ISO 8601 calendar, which is a
proleptic Gregorian
calendar which implements the current leap-day rules from before the
Gregorian calendar was in place, and also includes the year
0 as the year number in between -1
BCE and 1 CE. Leap seconds are not supported.
The date and time information is internally stored as a 64-bit number so
all conceivably useful dates (including negative years) are supported. The
range is from about 292 billion years in the past to the same in the
future.
The timezones referenced in this section can be found in the
.
&reference.datetime.setup;
&reference.datetime.constants;
&reference.datetime.examples;
&reference.datetime.datetime;
&reference.datetime.datetimeimmutable;
&reference.datetime.datetimeinterface;
&reference.datetime.datetimezone;
&reference.datetime.dateinterval;
&reference.datetime.dateperiod;
&reference.datetime.reference;
Date/Time Errors and ExceptionsDateError (extends Error)DateObjectErrorDateRangeErrorDateException (extends Exception)DateInvalidOperationExceptionDateInvalidTimezoneExceptionDateMalformedIntervalStringExceptionDateMalformedPeriodStringExceptionDateMalformedStringException
&reference.datetime.formats;
&reference.datetime.timezones;
&reference.datetime.dateerror;
&reference.datetime.dateobjecterror;
&reference.datetime.daterangeerror;
&reference.datetime.dateexception;
&reference.datetime.dateinvalidoperationexception;
&reference.datetime.dateinvalidtimezoneexception;
&reference.datetime.datemalformedintervalstringexception;
&reference.datetime.datemalformedperiodstringexception;
&reference.datetime.datemalformedstringexception;