All date related functions conforms to the standard Java date functions. Years, entered with two digits, will refer to 1900 if they are between 70 and 99 and refer to year 2000 if they are between 00 and 69.

dateAdd*

The following functions adds a specified number of years, months, days, hours, minutes, seconds, or milliseconds to a date value.

void dateAddYears ( date d, int years )
void dateAddMonths ( date d, int months )
void dateAddDays ( date d, int days )
void dateAddHours ( date d , int hours)
void dateAddMinutes ( date d, int minutes )
void dateAddSeconds ( date d , int seconds)
void dateAddMilliseconds ( date d, int milliseconds )

dateCreate*

The following functions creates a full date, based on current system timestamp of the host, or a given date and/or time:

date dateCreateNow()
date dateCreate ( int year, int month, int day, int hour, int minute, int second )

Creates dates where either the date or time part is set:

date dateCreateFromDate ( int year, int month, int day )
date dateCreateFromTime ( int hour, int minute, int second )
date dateCreateFromMilliseconds ( long milliseconds )

Creates a copy of a date:

date dateCreateCopy( date d )

dateCreateNowMilliseconds

The dateCreateNowMilliseconds function returns the current date of the operating system in milliseconds of the operating system.

long dateCreateNowMilliseconds()

dateDiff

The dateDiff function calculates the difference in milliseconds between two dates. The return value is date1 - date2 which means that the result may be negative.

long dateDiff ( date date1, date date2 )

dateGet*

Given a date, the following functions return the year number, month number, day number (Monday=1, Tuesday=2, etc), hour (24 hour clock), minute, second, or millisecond.

int dateGetYear( date d )
int dateGetMonth( date d )
int dateGetDay( date d )
int dateGetDayOfWeek( date d )
int dateGetHours24( date d )
int dateGetMinutes( date d )
int dateGetSeconds( date d )
int dateGetMilliseconds( date d )
string dateGetTZ( date d )

Parameters:

debug( dateGetTZ( dateCreateNow() ) );

dateGetAsMilliseconds

Given a date, the function dateGetAsMilliseconds returns the total number of milliseconds since 1 Jan, 1970. This function is the inverse of dateCreateFromMilliseconds.

long dateGetAsMilliseconds( date d )

dateGMTOffset

The dateGMTOffset function returns the number of milliseconds diverging from GMT.

long dateGMTOffset( date d )

dateHas*

Given a date the following functions return true if the date includes a date or time part.

boolean dateHasDate( date d ) boolean dateHasTime( date d )

dateInDaylightTime

Given a date, the dateInDaylightTime functions returns true if the date is a daylight-saving date.

boolean dateInDaylightTime( date d )

dateIsLeapYear

Given a date, the dateIsLeapYear function performs a leap year evaluation.

boolean dateIsLeapYear( date d )

dateNanoseconds

The dateNanoseconds function returns a timestamp in nanoseconds of the operating system. Mainly used to measure code execution times.

long dateNanoseconds()

dateSet*

The following functions sets different parts of a given date:

void dateSetYear ( date d, int year )
void dateSetMonth ( date d, int month )
void dateSetDay ( date d, int day )
void dateSetHours24 ( date d , int hours)
void dateSetMinutes ( date d, int minutes )
void dateSetSeconds ( date d , int seconds)
void dateSetMilliseconds ( date d, int milliseconds )
void dateSetTZ ( date d, string timeZone )

The following functions sets the complete date or time part of a date:

void dateSetDate ( date d, int year, int month, int day )
void dateSetTime ( date d, int hour, int minute, int second)