Date/Time Functions

CREATE_HOLIDAYS, dt_list

Creates the system variable !Holiday_List.

CREATE_WEEKENDS, day_names

Creates the system variable !Weekend_List.

DAY_NAME (dt_var)

Returns a string array containing the name of the day of the week for each day in a Date/Time variable.

DAY_OF_WEEK (dt_var)

Returns an array of integers containing the day of the week for each date in a Date/Time variable.

DAY_OF_YEAR (dt_var)

Returns an array of integers containing the day of the year for each date in a Date/Time variable.

DT_ADD (dt_value)

Increment the values in a Date/Time variable by a specified amount.

DT_COMPRESS (dt_array)

Removes holidays and weekends from the Julian day portion of Date/Time variables.

DT_DURATION (dt_value_1, dt_value_2)

Determines the elapsed time between two Date/Time variables.

DT_PRINT, dt_var

Prints the values of PV‑WAVE  Date/Time variables in a readable manner.

DT_SUBTRACT (dt_value)

Decrements the values in a Date/Time variable by a specified amount.

DT_TO_SEC (dt_value)

Converts PV‑WAVE  Date/Time variables to double-precision variables containing the number of seconds elapsed from a base date.

DT_TO_STR, dt_var, [, dates] [, times]

Converts PV‑WAVE  Date/Time variables into string data.

DT_TO_VAR, dt_value

Converts a PV‑WAVE  Date/Time variable to regular numerical data.

DTGEN (dt_start, dimension)

Returns an array of PV‑WAVE  Date/Time variables beginning from a specified date and incremented by a specified amount.

JUL_TO_DT (julian_day)

Converts a Julian day number to a PV‑WAVE  Date/Time variable.

LOAD_HOLIDAYS

Passes the value of the !Holiday_List system variable to the Date/Time routines.

LOAD_WEEKENDS

Passes the value of the !Weekend_List system variable to the Date/Time routines.

MONTH_NAME (dt_var)

Returns a string or array of strings containing the names of the months contained in a Date/Time variable.

SEC_TO_DT (num_of_seconds)

Converts any number of seconds into PV‑WAVE  Date/Time variables.

STR_TO_DT (date_strings [, time_strings] )

Converts date and time string data to PV‑WAVE  Date/Time variables.

TODAY ()

Returns a Date/Time variable containing the current system date and time.

VAR_TO_DT (yyyy, mm, dd, hh, mn, ss)

Converts scalars or arrays of scalars representing dates and times into PV‑WAVE  Date/Time variables.