Set of function to manipulate dates. More...

Functions
	get_tz_array ()
	Return an array with timezone values.

	getServerTimeZoneString ()
	Return server timezone string.

	getServerTimeZoneInt ($refgmtdate='now')
	Return server timezone int.

	dol_time_plus_duree ($time, $duration_value, $duration_unit, $ruleforendofmonth=0)
	Add a delay to a date.

	convertTime2Seconds ($iHours=0, $iMinutes=0, $iSeconds=0)
	Convert hours and minutes into seconds.

	convertSecondToTime ($iSecond, $format='all', $lengthOfDay=86400, $lengthOfWeek=7)
	Return, in clear text, value of a number of seconds in days, hours and minutes.

	convertDurationtoHour ($duration_value, $duration_unit)
	Convert duration to hour.

	dolSqlDateFilter ($datefield, $day_date, $month_date, $year_date, $excludefirstand=0, $gm=false)
	Generate a SQL string to make a filter into a range (for second of date until last second of date).

	dol_stringtotime ($string, $gm=1)
	Convert a string date into a GM Timestamps date Warning: YYYY-MM-DDTHH:MM:SS+02:00 (RFC3339) is not supported.

	dol_get_prev_day ($day, $month, $year)
	Return previous day.

	dol_get_next_day ($day, $month, $year)
	Return next day.

	dol_get_prev_month ($month, $year)
	Return previous month.

	dol_get_next_month ($month, $year)
	Return next month.

	dol_get_prev_week ($day, $week, $month, $year)
	Return previous week.

	dol_get_next_week ($day, $week, $month, $year)
	Return next week.

	dol_get_first_day ($year, $month=1, $gm=false)
	Return GMT time for first day of a month or year.

	dol_get_last_day ($year, $month=12, $gm=false)
	Return GMT time for last day of a month or year.

	dol_get_last_hour ($date, $gm='tzserver')
	Return GMT time for last hour of a given GMT date (it replaces hours, min and second part to 23:59:59)

	dol_get_first_hour ($date, $gm='tzserver')
	Return GMT time for first hour of a given GMT date (it removes hours, min and second part)

	dol_get_first_day_week ($day, $month, $year, $gm=false)
	Return first day of week for a date.

	getGMTEasterDatetime ($year)
	Return the easter day in GMT time.

	num_public_holiday ($timestampStart, $timestampEnd, $country_code='', $lastday=0, $includesaturday=-1, $includesunday=-1, $includefriday=-1, $includemonday=-1)
	Return the number of non working days including Friday, Saturday and Sunday (or not) between 2 dates in timestamp.

	num_between_day ($timestampStart, $timestampEnd, $lastday=0)
	Function to return number of days between two dates (date must be UTC date !) Example: 2012-01-01 2012-01-02 => 1 if lastday=0, 2 if lastday=1.

	num_open_day ($timestampStart, $timestampEnd, $inhour=0, $lastday=0, $halfday=0, $country_code='')
	Function to return number of working days (and text of units) between two dates (working days)

	monthArray ($outputlangs, $short=0)
	Return array of translated months or selected month.

	getWeekNumbersOfMonth ($month, $year)
	Return array of week numbers.

	getFirstDayOfEachWeek ($TWeek, $year)
	Return array of first day of weeks.

	getLastDayOfEachWeek ($TWeek, $year)
	Return array of last day of weeks.

	getWeekNumber ($day, $month, $year)
	Return week number.

Detailed Description

Set of function to manipulate dates.

Definition in file date.lib.php.

Function Documentation

◆ convertDurationtoHour()

convertDurationtoHour	(		$duration_value,
			$duration_unit )

Convert duration to hour.

Parameters

int	$duration_value	Duration value
int	$duration_unit	Duration unit

Returns: int $result

Definition at line 333 of file date.lib.php.

Referenced by BOM\calculateCosts().

◆ convertSecondToTime()

convertSecondToTime	(	$iSecond,
		$format = 'all',
		$lengthOfDay = 86400,
		$lengthOfWeek = 7 )

Return, in clear text, value of a number of seconds in days, hours and minutes.

Can be used to show a duration.

Parameters

int	$iSecond	Number of seconds
string	$format	Output format 'all': total delay days hour:min like "2 days 12:30", 'allwithouthour': total delay days without hour part like "2 days", 'allhourmin': total delay with format hours:min like "60:30", 'allhourminsec': total delay with format hours:min:sec like "60:30:10", 'allhour': total delay hours without min/sec like "60:30", 'fullhour': total delay hour decimal like "60.5" for 60:30, 'hour': only hours part "12", 'min': only minutes part "30", 'sec': only seconds part, 'month': only month part, 'year': only year part);
int	$lengthOfDay	Length of day (default 86400 seconds for 1 day, 28800 for 8 hour)
int	$lengthOfWeek	Length of week (default 7)

Returns: string Formated text of duration Example: 0 return 00:00, 3600 return 1:00, 86400 return 1d, 90000 return 1 Day 01:00

See also: convertTime2Seconds()

Definition at line 241 of file date.lib.php.

References dol_print_date().

Referenced by build_calfile(), constructGanttLine(), doc_generic_project_odt\get_substitutionarray_tasks(), doc_generic_task_odt\get_substitutionarray_tasks(), doc_generic_project_odt\get_substitutionarray_taskstime(), doc_generic_task_odt\get_substitutionarray_taskstime(), Fichinter\getKanbanView(), getTaskProgressView(), print_projecttasks_array(), projectLinesa(), projectLinesPerAction(), projectLinesPerDay(), projectLinesPerWeek(), pdf_baleine\write_file(), pdf_soleil\write_file(), pdf_strato\write_file(), and pdf_timespent\write_file().

◆ convertTime2Seconds()

convertTime2Seconds	(	$iHours = 0,
		$iMinutes = 0,
		$iSeconds = 0 )

Convert hours and minutes into seconds.

Parameters

int	$iHours	Hours
int	$iMinutes	Minutes
int	$iSeconds	Seconds

Returns: int Time into seconds

See also: convertSecondToTime()

Definition at line 212 of file date.lib.php.

◆ dol_get_first_day()

dol_get_first_day	(	$year,
		$month = 1,
		$gm = false )

Return GMT time for first day of a month or year.

Parameters

int	$year	Year
int	$month	Month
mixed	$gm	False or 0 or 'tzserver' = Return date to compare with server TZ, True or 1 or 'gmt' to compare with GMT date. Example: dol_get_first_day(1970,1,false) will return -3600 with TZ+1, a dol_print_date on it will return 1970-01-01 00:00:00 Example: dol_get_first_day(1970,1,true) will return 0 whatever is TZ, a dol_print_date on it will return 1970-01-01 00:00:00

Returns: int Date for first day, '' if error

Definition at line 578 of file date.lib.php.

References dol_mktime().

Referenced by CommActionRapport\_pages(), activitytrim(), ActionComm\build_exportfile(), ProjectStats\buildWhere(), TaskStats\buildWhere(), Asset\calculationDepreciation(), AdherentStats\countMembersByTagAndStatus(), AdherentStats\countMembersByTypeAndStatus(), Facture\createFromClone(), dolSqlDateFilter(), CommandeStats\getAllByProduct(), FactureStats\getAllByProduct(), FichinterStats\getAllByProduct(), PropaleStats\getAllByProduct(), CommandeStats\getAmountByMonth(), FactureStats\getAmountByMonth(), FichinterStats\getAmountByMonth(), PropaleStats\getAmountByMonth(), ReceptionStats\getAmountByMonth(), FactureStats\getAmountByYear(), CommandeStats\getAverageByMonth(), FactureStats\getAverageByMonth(), FichinterStats\getAverageByMonth(), ProjectStats\getAverageByMonth(), PropaleStats\getAverageByMonth(), ReceptionStats\getAverageByMonth(), TaskStats\getAverageByMonth(), CommandeStats\getNbByMonth(), DonationStats\getNbByMonth(), ExpeditionStats\getNbByMonth(), FactureStats\getNbByMonth(), FichinterStats\getNbByMonth(), PropaleStats\getNbByMonth(), ReceptionStats\getNbByMonth(), AccountancyCategory\getSumDebitCredit(), box_birthdays\loadBox(), Localtax\localtax_sum_collectee(), Localtax\localtax_sum_payee(), Localtax\localtax_sum_reglee(), tax_by_rate(), tax_by_thirdparty(), pdf_paiement\write_file(), and pdf_standard\write_file().

◆ dol_get_first_day_week()

dol_get_first_day_week	(	$day,
		$month,
		$year,
		$gm = false )

Return first day of week for a date.

First day of week may be monday if option MAIN_START_WEEK is 1.

Parameters

int	$day	Day
int	$month	Month
int	$year	Year
mixed	$gm	False or 0 or 'tzserver' = Return date to compare with server TZ, True or 1 or 'gmt' to compare with GMT date.

Returns: array year,month,week,first_day,first_month,first_year,prev_day,prev_month,prev_year

Definition at line 653 of file date.lib.php.

References dol_getdate(), and dol_mktime().

Referenced by dol_get_next_week(), and dol_get_prev_week().

◆ dol_get_first_hour()

dol_get_first_hour	(		$date,
			$gm = 'tzserver' )

Return GMT time for first hour of a given GMT date (it removes hours, min and second part)

Parameters

int	$date	Date GMT
mixed	$gm	False or 0 or 'tzserver' = Return date to compare with server TZ, 'gmt' to compare with GMT date.

Returns: int Date for last hour of a given date

Definition at line 638 of file date.lib.php.

References dol_getdate(), and dol_mktime().

Referenced by User\isNotIntoValidityDateRange(), and Facture\sendEmailsRemindersOnInvoiceDueDate().

◆ dol_get_last_day()

dol_get_last_day	(	$year,
		$month = 12,
		$gm = false )

Return GMT time for last day of a month or year.

Note: The timestamp contains last day and last hours (23:59:59)

Parameters

int	$year	Year
int	$month	Month
mixed	$gm	False or 0 or 'tzserver' = Return date to compare with server TZ, True or 1 or 'gmt' to compare with GMT date.

Returns: int Date for first day, '' if error

Definition at line 597 of file date.lib.php.

References dol_mktime().

Referenced by CommActionRapport\_pages(), ActionComm\build_exportfile(), ProjectStats\buildWhere(), TaskStats\buildWhere(), Asset\calculationDepreciation(), Facture\createFromClone(), dolSqlDateFilter(), Accountancy\exportData(), CommandeStats\getAllByProduct(), FactureStats\getAllByProduct(), FichinterStats\getAllByProduct(), PropaleStats\getAllByProduct(), CommandeStats\getAmountByMonth(), FactureStats\getAmountByMonth(), FichinterStats\getAmountByMonth(), PropaleStats\getAmountByMonth(), ReceptionStats\getAmountByMonth(), FactureStats\getAmountByYear(), CommandeStats\getAverageByMonth(), FactureStats\getAverageByMonth(), FichinterStats\getAverageByMonth(), ProjectStats\getAverageByMonth(), PropaleStats\getAverageByMonth(), ReceptionStats\getAverageByMonth(), TaskStats\getAverageByMonth(), getCurrentPeriodOfFiscalYear(), getDefaultDatesForTransfer(), CommandeStats\getNbByMonth(), DonationStats\getNbByMonth(), ExpeditionStats\getNbByMonth(), FactureStats\getNbByMonth(), FichinterStats\getNbByMonth(), PropaleStats\getNbByMonth(), ReceptionStats\getNbByMonth(), AccountancyCategory\getSumDebitCredit(), Localtax\localtax_sum_collectee(), Localtax\localtax_sum_payee(), Localtax\localtax_sum_reglee(), tax_by_rate(), tax_by_thirdparty(), pdf_paiement\write_file(), and pdf_standard\write_file().

◆ dol_get_last_hour()

dol_get_last_hour	(		$date,
			$gm = 'tzserver' )

Return GMT time for last hour of a given GMT date (it replaces hours, min and second part to 23:59:59)

Parameters

int	$date	Date GMT
mixed	$gm	False or 0 or 'tzserver' = Return date to compare with server TZ, 'gmt' to compare with GMT date.

Returns: int Date for last hour of a given date

Definition at line 624 of file date.lib.php.

References dol_getdate(), and dol_mktime().

Referenced by Facture\createDepositFromOrigin(), and User\isNotIntoValidityDateRange().

◆ dol_get_next_day()

dol_get_next_day	(	$day,
		$month,
		$year )

Return next day.

Parameters

int	$day	Day
int	$month	Month
int	$year	Year

Returns: array Next year,month,day

Definition at line 482 of file date.lib.php.

References dol_getdate(), and dol_mktime().

Referenced by getCommonSubstitutionArray(), and GETPOST().

◆ dol_get_next_month()

dol_get_next_month	(		$month,
			$year )

Return next month.

Parameters

int	$month	Month
int	$year	Year

Returns: array Next year,month

Definition at line 516 of file date.lib.php.

Referenced by Facture\createFromClone(), getCommonSubstitutionArray(), and GETPOST().

◆ dol_get_next_week()

dol_get_next_week	(	$day,
		$week,
		$month,
		$year )

Return next week.

Parameters

int	$day	Day
int	$week	Week
int	$month	Month
int	$year	Year

Returns: array Next year,month,day

Definition at line 556 of file date.lib.php.

References dol_get_first_day_week(), dol_getdate(), and dol_mktime().

◆ dol_get_prev_day()

dol_get_prev_day	(	$day,
		$month,
		$year )

Return previous day.

Parameters

int	$day	Day
int	$month	Month
int	$year	Year

Returns: array Previous year,month,day

Definition at line 466 of file date.lib.php.

References dol_getdate(), and dol_mktime().

Referenced by getCommonSubstitutionArray(), and GETPOST().

◆ dol_get_prev_month()

dol_get_prev_month	(		$month,
			$year )

Return previous month.

Parameters

int	$month	Month
int	$year	Year

Returns: array Previous year,month

Definition at line 497 of file date.lib.php.

Referenced by Accountancy\exportData(), getCommonSubstitutionArray(), and GETPOST().

◆ dol_get_prev_week()

dol_get_prev_week	(	$day,
		$week,
		$month,
		$year )

Return previous week.

Parameters

int	$day	Day
int	$week	Week
int	$month	Month
int	$year	Year

Returns: array Previous year,month,day

Definition at line 537 of file date.lib.php.

References dol_get_first_day_week(), dol_getdate(), and dol_mktime().

◆ dol_stringtotime()

dol_stringtotime	(		$string,
			$gm = 1 )

Convert a string date into a GM Timestamps date Warning: YYYY-MM-DDTHH:MM:SS+02:00 (RFC3339) is not supported.

If parameter gm is 1, we will use no TZ, if not we will use TZ of server, not the one inside string.

Parameters

string	$string	Date in a string YYYYMMDD YYYYMMDDHHMMSS YYYYMMDDTHHMMSSZ YYYY-MM-DDTHH:MM:SSZ (RFC3339) DD/MM/YY or DD/MM/YYYY (deprecated) DD/MM/YY HH:MM:SS or DD/MM/YYYY HH:MM:SS (deprecated)
int \| string	$gm	'gmt' or 1 =Input date is GM date, 'tzserver' or 0 =Input date is date using PHP server timezone

Returns: int Date as a timestamp 19700101020000 -> 7200 with gm=1 19700101000000 -> 0 with gm=1

See also: dol_print_date(), dol_mktime(), dol_getdate()

Definition at line 410 of file date.lib.php.

References dol_mktime(), and dol_syslog().

Referenced by Tasks\addTimeSpent(), ActionComm\build_exportfile(), Export\build_file(), createInvoice(), createOrder(), createProject(), Dolistore\get_products(), ImportCsv\import_insert(), ImportXlsx\import_insert(), StockMovements\post(), Tasks\putTimeSpent(), and ExportExcel2007\write_record().

◆ dol_time_plus_duree()

dol_time_plus_duree	(	$time,
		$duration_value,
		$duration_unit,
		$ruleforendofmonth = 0 )

Add a delay to a date.

Parameters

int	$time	Date timestamp (or string with format YYYY-MM-DD)
int	$duration_value	Value of delay to add
int	$duration_unit	Unit of added delay (d, m, y, w, h, i)
int	$ruleforendofmonth	Change the behavior of PHP over data-interval, 0 or 1

Returns: int New timestamp

See also: convertSecondToTime(), convertTimeToSeconds()

Definition at line 123 of file date.lib.php.

References dol_mktime(), and dol_print_date().

Referenced by modAdherent\__construct(), activitytrim(), Task\addTimeSpent(), build_calfile(), CommonInvoice\calculate_date_lim_reglement(), Asset\calculationDepreciation(), Facture\create(), FactureFournisseur\create(), Task\delTimeSpent(), Contrat\doAutoRenewContracts(), PartnershipUtils\doCancelStatusOfMemberPartnership(), Accountancy\exportData(), FactureFournisseurRec\getNextDate(), FactureRec\getNextDate(), Adherent\initAsSpecimen(), box_activity\loadBox(), box_graph_nb_ticket_last_x_days\loadBox(), Project\loadTimeSpent(), Project\loadTimeSpentMonth(), num_public_holiday(), projectLinesPerDay(), projectLinesPerWeek(), Cronjob\reprogram_jobs(), Facture\sendEmailsRemindersOnInvoiceDueDate(), Adherent\sendReminderForExpiredSubscription(), Adherent\subscription(), Task\updateTimeSpent(), and doc_generic_invoice_odt\write_file().

◆ dolSqlDateFilter()

dolSqlDateFilter	(	$datefield,
		$day_date,
		$month_date,
		$year_date,
		$excludefirstand = 0,
		$gm = false )

Generate a SQL string to make a filter into a range (for second of date until last second of date).

This method allows to maje SQL request that will deal correctly the timezone of server.

Parameters

string	$datefield	Name of SQL field where apply sql date filter
int \| string	$day_date	Day date (Can be 0 or '' for filter on a month)
int \| string	$month_date	Month date (Can be 0 or '' for filter on a year)
int \| string	$year_date	Year date
int	$excludefirstand	Exclude first and
mixed	$gm	False or 0 or 'tzserver' = Input date fields are date info in the server TZ. True or 1 or 'gmt' = Input are date info in GMT TZ. Note: In database, dates are always fot the server TZ.

Returns: string $sqldate String with SQL filter

Definition at line 361 of file date.lib.php.

References dol_get_first_day(), dol_get_last_day(), and dol_mktime().

Referenced by BookKeeping\deleteByYearAndJournal(), box_birthdays\loadBox(), and box_birthdays_members\loadBox().

◆ get_tz_array()

get_tz_array ( )

Return an array with timezone values.

Returns: array Array with timezone values

Definition at line 34 of file date.lib.php.

◆ getFirstDayOfEachWeek()

getFirstDayOfEachWeek	(		$TWeek,
			$year )

Return array of first day of weeks.

Parameters

array	$TWeek	array of week numbers
int	$year	Year number

Returns: array First day of week

Definition at line 1136 of file date.lib.php.

◆ getGMTEasterDatetime()

getGMTEasterDatetime ( $year )

Return the easter day in GMT time.

This function replaces easter_date() that returns a date in local TZ.

Parameters

int $year Year

Returns: int GMT Date of easter day

Definition at line 723 of file date.lib.php.

Referenced by num_public_holiday().

◆ getLastDayOfEachWeek()

getLastDayOfEachWeek	(		$TWeek,
			$year )

Return array of last day of weeks.

Parameters

array	$TWeek	array of week numbers
int	$year	Year number

Returns: array Last day of week

Definition at line 1154 of file date.lib.php.

◆ getServerTimeZoneInt()

getServerTimeZoneInt ( $refgmtdate = 'now' )

Return server timezone int.

Parameters

string $refgmtdate Reference period for timezone (timezone differs on winter and summer. May be 'now', 'winter' or 'summer')

Returns: float An offset in hour (+1 for Europe/Paris on winter and +2 for Europe/Paris on summer). Note some countries use half and even quarter hours.

Definition at line 84 of file date.lib.php.

References dol_now(), dol_print_date(), dol_print_error(), and getServerTimeZoneString().

Referenced by dol_now(), dol_print_object_info(), and Form\selectDate().

◆ getServerTimeZoneString()

getServerTimeZoneString ( )

Return server timezone string.

Returns: string PHP server timezone string ('Europe/Paris')

Definition at line 73 of file date.lib.php.

Referenced by getServerTimeZoneInt().

◆ getWeekNumber()

getWeekNumber	(	$day,
		$month,
		$year )

Return week number.

Parameters

int	$day	Day number
int	$month	Month number
int	$year	Year number

Returns: int Week number

Definition at line 1170 of file date.lib.php.

Referenced by getWeekNumbersOfMonth(), and Project\loadTimeSpentMonth().

◆ getWeekNumbersOfMonth()

getWeekNumbersOfMonth	(		$month,
			$year )

Return array of week numbers.

Parameters

int	$month	Month number
int	$year	Year number

Returns: array Week numbers

Definition at line 1119 of file date.lib.php.

References getWeekNumber().

◆ monthArray()

monthArray	(		$outputlangs,
			$short = 0 )

Return array of translated months or selected month.

This replace old function monthArrayOrSelected.

Parameters

Translate	$outputlangs	Object langs
int	$short	0=Return long label, 1=Return short label

Returns: array Month string or array if selected < 0

Definition at line 1076 of file date.lib.php.

◆ num_between_day()

num_between_day	(	$timestampStart,
		$timestampEnd,
		$lastday = 0 )

Function to return number of days between two dates (date must be UTC date !) Example: 2012-01-01 2012-01-02 => 1 if lastday=0, 2 if lastday=1.

Parameters

int	$timestampStart	Timestamp start UTC
int	$timestampEnd	Timestamp end UTC
int	$lastday	Last day is included, 0: no, 1:yes

Returns: int Number of days @seealso num_public_holiday(), num_open_day()

Definition at line 992 of file date.lib.php.

Referenced by Asset\calculationDepreciation(), and num_open_day().

◆ num_open_day()

num_open_day	(	$timestampStart,
		$timestampEnd,
		$inhour = 0,
		$lastday = 0,
		$halfday = 0,
		$country_code = '' )

Function to return number of working days (and text of units) between two dates (working days)

Parameters

int	$timestampStart	Timestamp for start date (date must be UTC to avoid calculation errors)
int	$timestampEnd	Timestamp for end date (date must be UTC to avoid calculation errors)
int	$inhour	0: return number of days, 1: return number of hours
int	$lastday	We include last day, 0: no, 1:yes
int	$halfday	Tag to define half day when holiday start and end
string	$country_code	Country code (company country code if not defined)

Returns: int|string Number of days or hours or string if error @seealso num_between_day(), num_public_holiday()

Definition at line 1018 of file date.lib.php.

References dol_syslog(), num_between_day(), and num_public_holiday().

Referenced by Export\build_file().

◆ num_public_holiday()

num_public_holiday	(	$timestampStart,
		$timestampEnd,
		$country_code = '',
		$lastday = 0,
		$includesaturday = -1,
		$includesunday = -1,
		$includefriday = -1,
		$includemonday = -1 )

Return the number of non working days including Friday, Saturday and Sunday (or not) between 2 dates in timestamp.

Dates must be UTC with hour, min, sec to 0. Called by function num_open_day()

Parameters

int	$timestampStart	Timestamp start (UTC with hour, min, sec = 0)
int	$timestampEnd	Timestamp end (UTC with hour, min, sec = 0)
string	$country_code	Country code
int	$lastday	Last day is included, 0: no, 1:yes
int	$includesaturday	Include saturday as non working day (-1=use setup, 0=no, 1=yes)
int	$includesunday	Include sunday as non working day (-1=use setup, 0=no, 1=yes)
int	$includefriday	Include friday as non working day (-1=use setup, 0=no, 1=yes)
int	$includemonday	Include monday as non working day (-1=use setup, 0=no, 1=yes)

Returns: int|string Number of non working days or error message string if error

See also: num_between_day(), num_open_day()

Definition at line 747 of file date.lib.php.

References dol_getIdFromCode(), dol_syslog(), dol_time_plus_duree(), and getGMTEasterDatetime().

Referenced by num_open_day().

Functions

Detailed Description

Function Documentation

◆ convertDurationtoHour()

◆ convertSecondToTime()

◆ convertTime2Seconds()

◆ dol_get_first_day()

◆ dol_get_first_day_week()

◆ dol_get_first_hour()

◆ dol_get_last_day()

◆ dol_get_last_hour()

◆ dol_get_next_day()

◆ dol_get_next_month()

◆ dol_get_next_week()

◆ dol_get_prev_day()

◆ dol_get_prev_month()

◆ dol_get_prev_week()

◆ dol_stringtotime()

◆ dol_time_plus_duree()

◆ dolSqlDateFilter()

◆ get_tz_array()

◆ getFirstDayOfEachWeek()

◆ getGMTEasterDatetime()

◆ getLastDayOfEachWeek()

◆ getServerTimeZoneInt()

◆ getServerTimeZoneString()

◆ getWeekNumber()

◆ getWeekNumbersOfMonth()

◆ monthArray()

◆ num_between_day()

◆ num_open_day()

◆ num_public_holiday()